On Thu, Aug 8, 2019 at 11:01 PM syzbot <syzbot+2d7ecdf99f15689032b3@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > Hello, > > syzbot found the following crash on: > > HEAD commit: 0eb0ce0a Merge tag 'spi-fix-v5.3-rc3' of git://git.kernel... > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=1234588c600000 > kernel config: https://syzkaller.appspot.com/x/.config?x=39113f5c48aea971 > dashboard link: https://syzkaller.appspot.com/bug?extid=2d7ecdf99f15689032b3 > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=160e1906600000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=140ab906600000 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+2d7ecdf99f15689032b3@xxxxxxxxxxxxxxxxxxxxxxxxx > > executing program > executing program > executing program > executing program > executing program > BUG: memory leak > unreferenced object 0xffff88810fa4b380 (size 64): > comm "syz-executor900", pid 7117, jiffies 4294946947 (age 16.560s) > hex dump (first 32 bytes): > 20 4e 00 00 89 e7 4c 8d 00 00 00 00 00 00 00 00 N....L......... > 58 40 dd 16 82 88 ff ff 00 00 00 00 00 00 00 00 X@.............. > backtrace: > [<00000000f1461735>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<00000000f1461735>] slab_post_alloc_hook mm/slab.h:522 [inline] > [<00000000f1461735>] slab_alloc mm/slab.c:3319 [inline] > [<00000000f1461735>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483 > [<00000000ff3ccf22>] sctp_bucket_create net/sctp/socket.c:8374 [inline] > [<00000000ff3ccf22>] sctp_get_port_local+0x189/0x5b0 > net/sctp/socket.c:8121 > [<00000000eed41612>] sctp_do_bind+0xcc/0x1e0 net/sctp/socket.c:402 > [<000000002bf65239>] sctp_bind+0x44/0x70 net/sctp/socket.c:302 > [<00000000b1aaaf57>] inet_bind+0x40/0xc0 net/ipv4/af_inet.c:441 > [<00000000db36b917>] __sys_bind+0x11c/0x140 net/socket.c:1647 > [<00000000679cfe3c>] __do_sys_bind net/socket.c:1658 [inline] > [<00000000679cfe3c>] __se_sys_bind net/socket.c:1656 [inline] > [<00000000679cfe3c>] __x64_sys_bind+0x1e/0x30 net/socket.c:1656 > [<000000002aac3ac2>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:296 > [<000000000c38e074>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88810fa4b380 (size 64): > comm "syz-executor900", pid 7117, jiffies 4294946947 (age 19.260s) > hex dump (first 32 bytes): > 20 4e 00 00 89 e7 4c 8d 00 00 00 00 00 00 00 00 N....L......... > 58 40 dd 16 82 88 ff ff 00 00 00 00 00 00 00 00 X@.............. > backtrace: > [<00000000f1461735>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<00000000f1461735>] slab_post_alloc_hook mm/slab.h:522 [inline] > [<00000000f1461735>] slab_alloc mm/slab.c:3319 [inline] > [<00000000f1461735>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483 > [<00000000ff3ccf22>] sctp_bucket_create net/sctp/socket.c:8374 [inline] > [<00000000ff3ccf22>] sctp_get_port_local+0x189/0x5b0 > net/sctp/socket.c:8121 > [<00000000eed41612>] sctp_do_bind+0xcc/0x1e0 net/sctp/socket.c:402 > [<000000002bf65239>] sctp_bind+0x44/0x70 net/sctp/socket.c:302 > [<00000000b1aaaf57>] inet_bind+0x40/0xc0 net/ipv4/af_inet.c:441 > [<00000000db36b917>] __sys_bind+0x11c/0x140 net/socket.c:1647 > [<00000000679cfe3c>] __do_sys_bind net/socket.c:1658 [inline] > [<00000000679cfe3c>] __se_sys_bind net/socket.c:1656 [inline] > [<00000000679cfe3c>] __x64_sys_bind+0x1e/0x30 net/socket.c:1656 > [<000000002aac3ac2>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:296 > [<000000000c38e074>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88810fa4b380 (size 64): > comm "syz-executor900", pid 7117, jiffies 4294946947 (age 21.990s) > hex dump (first 32 bytes): > 20 4e 00 00 89 e7 4c 8d 00 00 00 00 00 00 00 00 N....L......... > 58 40 dd 16 82 88 ff ff 00 00 00 00 00 00 00 00 X@.............. > backtrace: > [<00000000f1461735>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<00000000f1461735>] slab_post_alloc_hook mm/slab.h:522 [inline] > [<00000000f1461735>] slab_alloc mm/slab.c:3319 [inline] > [<00000000f1461735>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483 > [<00000000ff3ccf22>] sctp_bucket_create net/sctp/socket.c:8374 [inline] > [<00000000ff3ccf22>] sctp_get_port_local+0x189/0x5b0 > net/sctp/socket.c:8121 > [<00000000eed41612>] sctp_do_bind+0xcc/0x1e0 net/sctp/socket.c:402 > [<000000002bf65239>] sctp_bind+0x44/0x70 net/sctp/socket.c:302 > [<00000000b1aaaf57>] inet_bind+0x40/0xc0 net/ipv4/af_inet.c:441 > [<00000000db36b917>] __sys_bind+0x11c/0x140 net/socket.c:1647 > [<00000000679cfe3c>] __do_sys_bind net/socket.c:1658 [inline] > [<00000000679cfe3c>] __se_sys_bind net/socket.c:1656 [inline] > [<00000000679cfe3c>] __x64_sys_bind+0x1e/0x30 net/socket.c:1656 > [<000000002aac3ac2>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:296 > [<000000000c38e074>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > BUG: memory leak > unreferenced object 0xffff88810fa4b380 (size 64): > comm "syz-executor900", pid 7117, jiffies 4294946947 (age 22.940s) > hex dump (first 32 bytes): > 20 4e 00 00 89 e7 4c 8d 00 00 00 00 00 00 00 00 N....L......... > 58 40 dd 16 82 88 ff ff 00 00 00 00 00 00 00 00 X@.............. > backtrace: > [<00000000f1461735>] kmemleak_alloc_recursive > include/linux/kmemleak.h:43 [inline] > [<00000000f1461735>] slab_post_alloc_hook mm/slab.h:522 [inline] > [<00000000f1461735>] slab_alloc mm/slab.c:3319 [inline] > [<00000000f1461735>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483 > [<00000000ff3ccf22>] sctp_bucket_create net/sctp/socket.c:8374 [inline] > [<00000000ff3ccf22>] sctp_get_port_local+0x189/0x5b0 > net/sctp/socket.c:8121 > [<00000000eed41612>] sctp_do_bind+0xcc/0x1e0 net/sctp/socket.c:402 > [<000000002bf65239>] sctp_bind+0x44/0x70 net/sctp/socket.c:302 > [<00000000b1aaaf57>] inet_bind+0x40/0xc0 net/ipv4/af_inet.c:441 > [<00000000db36b917>] __sys_bind+0x11c/0x140 net/socket.c:1647 > [<00000000679cfe3c>] __do_sys_bind net/socket.c:1658 [inline] > [<00000000679cfe3c>] __se_sys_bind net/socket.c:1656 [inline] > [<00000000679cfe3c>] __x64_sys_bind+0x1e/0x30 net/socket.c:1656 > [<000000002aac3ac2>] do_syscall_64+0x76/0x1a0 > arch/x86/entry/common.c:296 > [<000000000c38e074>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 > > executing program > executing program > executing program > executing program should be fixed by: commit 9b6c08878e23adb7cc84bdca94d8a944b03f099e Author: Xin Long <lucien.xin@xxxxxxxxx> Date: Wed Jun 26 16:31:39 2019 +0800 sctp: not bind the socket in sctp_connect was this commit included in the testing kernel? > > > --- > 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@xxxxxxxxxxxxxxxx. > > 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
