Messages in this thread | | | From | Hao Sun <> | Date | Tue, 14 Sep 2021 10:21:07 +0800 | Subject | WARNING in btrfs_sync_log |
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Hello,
When using Healer to fuzz the latest Linux kernel, the following crash was triggered.
HEAD commit: 6880fa6c5660 Linux 5.15-rc1 git tree: upstream console output: https://drive.google.com/file/d/1lmJTheZfyomG8EeaBnn4QYPIoQcXl12A/view?usp=sharing kernel config: https://drive.google.com/file/d/1rUzyMbe5vcs6khA3tL9EHTLJvsUdWcgB/view?usp=sharing C reproducer: https://drive.google.com/file/d/1ejGmKdXivo5Riz2L90rWIGD7tXS168RM/view?usp=sharing Syzlang reproducer: https://drive.google.com/file/d/1HlNZYZMwt3C71irTKL7cngOjJhLDH2Fl/view?usp=sharing
If you fix this issue, please add the following tag to the commit: Reported-by: Hao Sun <sunhao.th@gmail.com>
loop3: detected capacity change from 0 to 32768 BTRFS info (device loop3): disk space caching is enabled BTRFS info (device loop3): has skinny extents BTRFS info (device loop3): enabling ssd optimizations FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 23522 Comm: syz-executor Not tainted 5.15.0-rc1 #16 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x8d/0xcf lib/dump_stack.c:106 fail_dump lib/fault-inject.c:52 [inline] should_fail+0x13c/0x160 lib/fault-inject.c:146 should_failslab+0x5/0x10 mm/slab_common.c:1328 slab_pre_alloc_hook.constprop.99+0x4e/0xc0 mm/slab.h:494 slab_alloc_node mm/slub.c:3120 [inline] slab_alloc mm/slub.c:3214 [inline] kmem_cache_alloc+0x44/0x280 mm/slub.c:3219 kmem_cache_zalloc include/linux/slab.h:711 [inline] btrfs_alloc_path fs/btrfs/ctree.c:79 [inline] btrfs_insert_item+0x43/0x110 fs/btrfs/ctree.c:3931 update_log_root fs/btrfs/tree-log.c:2968 [inline] btrfs_sync_log+0xbbb/0x13c0 fs/btrfs/tree-log.c:3196 btrfs_sync_file+0x3b2/0x760 fs/btrfs/file.c:2285 vfs_fsync_range+0x48/0xa0 fs/sync.c:200 generic_write_sync include/linux/fs.h:2955 [inline] btrfs_file_write_iter+0x34f/0x510 fs/btrfs/file.c:2034 call_write_iter include/linux/fs.h:2163 [inline] new_sync_write+0x18d/0x260 fs/read_write.c:507 vfs_write+0x43b/0x4a0 fs/read_write.c:594 ksys_write+0xd2/0x120 fs/read_write.c:647 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x34/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x46ae99 Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7f718d0c48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000078c0a0 RCX: 000000000046ae99 RDX: 000000000000001b RSI: 0000000020005880 RDI: 0000000000000008 RBP: 00007f7f718d0c80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000001f R13: 0000000000000000 R14: 000000000078c0a0 R15: 00007ffde6a0b1e0 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 23522 at fs/btrfs/tree-log.c:3205 btrfs_sync_log+0x124d/0x13c0 fs/btrfs/tree-log.c:3205 Modules linked in: CPU: 0 PID: 23522 Comm: syz-executor Not tainted 5.15.0-rc1 #16 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 RIP: 0010:btrfs_sync_log+0x124d/0x13c0 fs/btrfs/tree-log.c:3205 Code: ff ff 41 83 fe fb 0f 84 aa 00 00 00 41 83 fe e2 0f 84 a0 00 00 00 e8 22 2f 45 ff 44 89 f6 48 c7 c7 38 25 39 85 e8 43 36 30 ff <0f> 0b e8 0c 2f 45 ff 8b 8d a0 fd ff ff ba 85 0c 00 00 48 c7 c6 70 RSP: 0018:ffffc90001cf3a10 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88801e248000 RCX: ffffc90001261000 RDX: 0000000000040000 RSI: ffffffff812d18bc RDI: 00000000ffffffff RBP: ffffc90001cf3cc0 R08: 0000000000000000 R09: 0000000000000001 R10: ffffc90001cf37a8 R11: 0000000000000004 R12: ffffc90001cf3ab0 R13: ffff88801dd2b000 R14: 00000000fffffff4 R15: ffff88801e248338 FS: 00007f7f718d1700(0000) GS:ffff88807dc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe7fcdb0000 CR3: 0000000013ddd000 CR4: 0000000000752ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: btrfs_sync_file+0x3b2/0x760 fs/btrfs/file.c:2285 vfs_fsync_range+0x48/0xa0 fs/sync.c:200 generic_write_sync include/linux/fs.h:2955 [inline] btrfs_file_write_iter+0x34f/0x510 fs/btrfs/file.c:2034 call_write_iter include/linux/fs.h:2163 [inline] new_sync_write+0x18d/0x260 fs/read_write.c:507 vfs_write+0x43b/0x4a0 fs/read_write.c:594 ksys_write+0xd2/0x120 fs/read_write.c:647 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x34/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x46ae99 Code: f7 d8 64 89 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7f718d0c48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000078c0a0 RCX: 000000000046ae99 RDX: 000000000000001b RSI: 0000000020005880 RDI: 0000000000000008 RBP: 00007f7f718d0c80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000001f R13: 0000000000000000 R14: 000000000078c0a0 R15: 00007ffde6a0b1e0
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