Messages in this thread | | | Date | Tue, 28 May 2019 11:28:05 -0700 | Subject | memory leak in sctp_get_port_local | From | syzbot <> |
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Hello,
syzbot found the following crash on:
HEAD commit: cd6c84d8 Linux 5.2-rc2 git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=101a184aa00000 kernel config: https://syzkaller.appspot.com/x/.config?x=64479170dcaf0e11 dashboard link: https://syzkaller.appspot.com/bug?extid=079bf326b38072f849d9 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13b5dbbca00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1038444aa00000
IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+079bf326b38072f849d9@syzkaller.appspotmail.com
: Permanently added '10.128.0.127' (ECDSA) to the list of known hosts. executing program executing program BUG: memory leak unreferenced object 0xffff8881288ca380 (size 64): comm "softirq", pid 0, jiffies 4294944468 (age 13.410s) hex dump (first 32 bytes): 21 4e 00 00 00 00 00 00 00 00 00 00 00 00 00 00 !N.............. 28 ae 85 23 81 88 ff ff 00 00 00 00 00 00 00 00 (..#............ backtrace: [<0000000054ece54d>] kmemleak_alloc_recursive include/linux/kmemleak.h:55 [inline] [<0000000054ece54d>] slab_post_alloc_hook mm/slab.h:439 [inline] [<0000000054ece54d>] slab_alloc mm/slab.c:3326 [inline] [<0000000054ece54d>] kmem_cache_alloc+0x134/0x270 mm/slab.c:3488 [<00000000d992ea84>] sctp_bucket_create net/sctp/socket.c:8395 [inline] [<00000000d992ea84>] sctp_get_port_local+0x189/0x5b0 net/sctp/socket.c:8142 [<0000000099206d90>] sctp_do_bind+0xcc/0x1e0 net/sctp/socket.c:402 [<00000000b8795757>] sctp_bind+0x44/0x70 net/sctp/socket.c:302 [<00000000672a44aa>] inet6_bind+0x40/0xb7 net/ipv6/af_inet6.c:445 [<0000000001400e1c>] __sys_bind+0x11c/0x140 net/socket.c:1659 [<00000000e69e8036>] __do_sys_bind net/socket.c:1670 [inline] [<00000000e69e8036>] __se_sys_bind net/socket.c:1668 [inline] [<00000000e69e8036>] __x64_sys_bind+0x1e/0x30 net/socket.c:1668 [<000000001644bb1f>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301 [<00000000199a1ea2>] entry_SYSCALL_64_after_hwframe+0x44/0xa9
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