Messages in this thread Patch in this message | | | From | "Benjamin Coddington" <> | Subject | Re: memory leak in nfs_get_client | Date | Tue, 11 Jun 2019 12:23:12 -0400 |
| |
Ugh.. Now that you can cancel the wait, you have to also handle if "new" was allocated. I think this needs:
diff --git a/fs/nfs/client.c b/fs/nfs/client.c index d7e4f0848e28..4d90f5bf0b0a 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -406,10 +406,10 @@ struct nfs_client *nfs_get_client(const struct nfs_client_initdata *cl_init) clp = nfs_match_client(cl_init); if (clp) { spin_unlock(&nn->nfs_client_lock); - if (IS_ERR(clp)) - return clp; if (new) new->rpc_ops->free_client(new); + if (IS_ERR(clp)) + return clp; return nfs_found_client(cl_init, clp); } if (new) { I'll patch/test and send it along.
Ben
On 11 Jun 2019, at 0:05, syzbot wrote:
> Hello, > > syzbot found the following crash on: > > HEAD commit: d1fdb6d8 Linux 5.2-rc4 > git tree: upstream > console output: > https://syzkaller.appspot.com/x/log.txt?x=117e0f71a00000 > kernel config: > https://syzkaller.appspot.com/x/.config?x=cb38d33cd06d8d48 > dashboard link: > https://syzkaller.appspot.com/bug?extid=7fe11b49c1cc30e3fce2 > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > syz repro: > https://syzkaller.appspot.com/x/repro.syz?x=15a46001a00000 > C reproducer: > https://syzkaller.appspot.com/x/repro.c?x=174b24d1a00000 > > IMPORTANT: if you fix the bug, please add the following tag to the > commit: > Reported-by: syzbot+7fe11b49c1cc30e3fce2@syzkaller.appspotmail.com > > fl=212 nc=0 na=0] > BUG: memory leak > unreferenced object 0xffff888121b91400 (size 1024): > comm "syz-executor400", pid 6969, jiffies 4294941900 (age 18.210s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88811e758400 (size 1024): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 18.150s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888118ef9360 (size 32): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 18.150s) > hex dump (first 32 bytes): > 00 71 54 04 00 ea ff ff c0 6e 9a 04 00 ea ff ff .qT......n...... > c0 0b 81 04 00 ea ff ff c0 05 86 04 00 ea ff ff ................ > backtrace: > [<000000003e75bb46>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000003e75bb46>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000003e75bb46>] slab_alloc mm/slab.c:3326 [inline] > [<000000003e75bb46>] __do_kmalloc mm/slab.c:3658 [inline] > [<000000003e75bb46>] __kmalloc_track_caller+0x15d/0x2c0 > mm/slab.c:3675 > [<0000000010f1326b>] kstrdup+0x3a/0x70 mm/util.c:52 > [<0000000070b2f357>] nfs_alloc_client+0xbd/0x170 > fs/nfs/client.c:169 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888121b91400 (size 1024): > comm "syz-executor400", pid 6969, jiffies 4294941900 (age 19.230s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88811e758400 (size 1024): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 19.170s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888118ef9360 (size 32): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 19.170s) > hex dump (first 32 bytes): > 00 71 54 04 00 ea ff ff c0 6e 9a 04 00 ea ff ff .qT......n...... > c0 0b 81 04 00 ea ff ff c0 05 86 04 00 ea ff ff ................ > backtrace: > [<000000003e75bb46>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000003e75bb46>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000003e75bb46>] slab_alloc mm/slab.c:3326 [inline] > [<000000003e75bb46>] __do_kmalloc mm/slab.c:3658 [inline] > [<000000003e75bb46>] __kmalloc_track_caller+0x15d/0x2c0 > mm/slab.c:3675 > [<0000000010f1326b>] kstrdup+0x3a/0x70 mm/util.c:52 > [<0000000070b2f357>] nfs_alloc_client+0xbd/0x170 > fs/nfs/client.c:169 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888121b91400 (size 1024): > comm "syz-executor400", pid 6969, jiffies 4294941900 (age 21.200s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88811e758400 (size 1024): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 21.140s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888118ef9360 (size 32): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 21.140s) > hex dump (first 32 bytes): > 00 71 54 04 00 ea ff ff c0 6e 9a 04 00 ea ff ff .qT......n...... > c0 0b 81 04 00 ea ff ff c0 05 86 04 00 ea ff ff ................ > backtrace: > [<000000003e75bb46>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000003e75bb46>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000003e75bb46>] slab_alloc mm/slab.c:3326 [inline] > [<000000003e75bb46>] __do_kmalloc mm/slab.c:3658 [inline] > [<000000003e75bb46>] __kmalloc_track_caller+0x15d/0x2c0 > mm/slab.c:3675 > [<0000000010f1326b>] kstrdup+0x3a/0x70 mm/util.c:52 > [<0000000070b2f357>] nfs_alloc_client+0xbd/0x170 > fs/nfs/client.c:169 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888121b91400 (size 1024): > comm "syz-executor400", pid 6969, jiffies 4294941900 (age 22.200s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88811e758400 (size 1024): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 22.140s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888118ef9360 (size 32): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 22.140s) > hex dump (first 32 bytes): > 00 71 54 04 00 ea ff ff c0 6e 9a 04 00 ea ff ff .qT......n...... > c0 0b 81 04 00 ea ff ff c0 05 86 04 00 ea ff ff ................ > backtrace: > [<000000003e75bb46>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000003e75bb46>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000003e75bb46>] slab_alloc mm/slab.c:3326 [inline] > [<000000003e75bb46>] __do_kmalloc mm/slab.c:3658 [inline] > [<000000003e75bb46>] __kmalloc_track_caller+0x15d/0x2c0 > mm/slab.c:3675 > [<0000000010f1326b>] kstrdup+0x3a/0x70 mm/util.c:52 > [<0000000070b2f357>] nfs_alloc_client+0xbd/0x170 > fs/nfs/client.c:169 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888121b91400 (size 1024): > comm "syz-executor400", pid 6969, jiffies 4294941900 (age 23.180s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88811e758400 (size 1024): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 23.120s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888118ef9360 (size 32): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 23.120s) > hex dump (first 32 bytes): > 00 71 54 04 00 ea ff ff c0 6e 9a 04 00 ea ff ff .qT......n...... > c0 0b 81 04 00 ea ff ff c0 05 86 04 00 ea ff ff ................ > backtrace: > [<000000003e75bb46>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000003e75bb46>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000003e75bb46>] slab_alloc mm/slab.c:3326 [inline] > [<000000003e75bb46>] __do_kmalloc mm/slab.c:3658 [inline] > [<000000003e75bb46>] __kmalloc_track_caller+0x15d/0x2c0 > mm/slab.c:3675 > [<0000000010f1326b>] kstrdup+0x3a/0x70 mm/util.c:52 > [<0000000070b2f357>] nfs_alloc_client+0xbd/0x170 > fs/nfs/client.c:169 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888121b91400 (size 1024): > comm "syz-executor400", pid 6969, jiffies 4294941900 (age 24.200s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88811e758400 (size 1024): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 24.140s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888118ef9360 (size 32): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 24.140s) > hex dump (first 32 bytes): > 00 71 54 04 00 ea ff ff c0 6e 9a 04 00 ea ff ff .qT......n...... > c0 0b 81 04 00 ea ff ff c0 05 86 04 00 ea ff ff ................ > backtrace: > [<000000003e75bb46>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000003e75bb46>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000003e75bb46>] slab_alloc mm/slab.c:3326 [inline] > [<000000003e75bb46>] __do_kmalloc mm/slab.c:3658 [inline] > [<000000003e75bb46>] __kmalloc_track_caller+0x15d/0x2c0 > mm/slab.c:3675 > [<0000000010f1326b>] kstrdup+0x3a/0x70 mm/util.c:52 > [<0000000070b2f357>] nfs_alloc_client+0xbd/0x170 > fs/nfs/client.c:169 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888121b91400 (size 1024): > comm "syz-executor400", pid 6969, jiffies 4294941900 (age 25.180s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88811e758400 (size 1024): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 25.120s) > hex dump (first 32 bytes): > 01 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ................ > 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ > backtrace: > [<000000009c69e9c0>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000009c69e9c0>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000009c69e9c0>] slab_alloc mm/slab.c:3326 [inline] > [<000000009c69e9c0>] kmem_cache_alloc_trace+0x13d/0x280 > mm/slab.c:3553 > [<000000007d1011ce>] kmalloc include/linux/slab.h:547 [inline] > [<000000007d1011ce>] kzalloc include/linux/slab.h:742 [inline] > [<000000007d1011ce>] nfs_alloc_client+0x2e/0x170 > fs/nfs/client.c:152 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff888118ef9360 (size 32): > comm "syz-executor400", pid 6973, jiffies 4294941906 (age 25.120s) > hex dump (first 32 bytes): > 00 71 54 04 00 ea ff ff c0 6e 9a 04 00 ea ff ff .qT......n...... > c0 0b 81 04 00 ea ff ff c0 05 86 04 00 ea ff ff ................ > backtrace: > [<000000003e75bb46>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<000000003e75bb46>] slab_post_alloc_hook mm/slab.h:439 [inline] > [<000000003e75bb46>] slab_alloc mm/slab.c:3326 [inline] > [<000000003e75bb46>] __do_kmalloc mm/slab.c:3658 [inline] > [<000000003e75bb46>] __kmalloc_track_caller+0x15d/0x2c0 > mm/slab.c:3675 > [<0000000010f1326b>] kstrdup+0x3a/0x70 mm/util.c:52 > [<0000000070b2f357>] nfs_alloc_client+0xbd/0x170 > fs/nfs/client.c:169 > [<000000007f1bdfa5>] nfs_get_client+0x1cb/0x500 > fs/nfs/client.c:425 > [<000000004dc18603>] nfs_init_server+0xc6/0x450 > fs/nfs/client.c:671 > [<0000000072615bbf>] nfs_create_server+0x83/0x1f0 > fs/nfs/client.c:958 > [<00000000d12e9a98>] nfs_try_mount+0x5a/0x350 fs/nfs/super.c:1883 > [<00000000b2735769>] nfs_fs_mount+0x448/0xc52 fs/nfs/super.c:2719 > [<000000000b19c7d0>] legacy_get_tree+0x27/0x80 fs/fs_context.c:661 > [<00000000d4887a5c>] vfs_get_tree+0x2e/0x120 fs/super.c:1476 > [<000000008eec78b0>] do_new_mount fs/namespace.c:2790 [inline] > [<000000008eec78b0>] do_mount+0x932/0xc50 fs/namespace.c:3110 > [<00000000d0ad59a7>] ksys_mount+0xab/0x120 fs/namespace.c:3319 > [<0000000082fa14d6>] __do_sys_mount fs/namespace.c:3333 [inline] > [<0000000082fa14d6>] __se_sys_mount fs/namespace.c:3330 [inline] > [<0000000082fa14d6>] __x64_sys_mount+0x26/0x30 fs/namespace.c:3330 > [<00000000ce916bab>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:301 > [<0000000070865558>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > executing program > > > --- > This bug is generated by a bot. It may contain errors. > See https://goo.gl/tpsmEJ for more information about syzbot. > syzbot engineers can be reached at syzkaller@googlegroups.com. > > syzbot will keep track of this bug report. See: > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. > syzbot can test patches for this bug, for details see: > https://goo.gl/tpsmEJ#testing-patches
| |