bisecting fixing commit since a1b977b49b66c75e6c51a515f6700371ae720217 building syzkaller on d32b0bbf2f8cfe548553c4012e2c0f79040d999f testing commit a1b977b49b66c75e6c51a515f6700371ae720217 with gcc (GCC) 8.4.1 20210217 kernel signature: 76508459896cbf24f2c2d52d97667f6f56846b39c0e7470b4acc4308a6001ccf run #0: crashed: kernel BUG in f2fs_evict_inode run #1: crashed: kernel BUG in f2fs_evict_inode run #2: crashed: kernel BUG in f2fs_evict_inode run #3: crashed: kernel BUG in f2fs_evict_inode run #4: crashed: kernel BUG in corrupted run #5: crashed: kernel BUG in f2fs_evict_inode run #6: crashed: kernel BUG in f2fs_evict_inode run #7: crashed: kernel BUG in f2fs_evict_inode run #8: crashed: kernel BUG in f2fs_evict_inode run #9: crashed: kernel BUG in f2fs_evict_inode run #10: crashed: kernel BUG in f2fs_evict_inode run #11: crashed: kernel BUG in corrupted run #12: crashed: kernel BUG in f2fs_evict_inode run #13: crashed: kernel BUG in f2fs_evict_inode run #14: crashed: kernel BUG in f2fs_evict_inode run #15: crashed: kernel BUG in f2fs_evict_inode run #16: crashed: kernel BUG in f2fs_evict_inode run #17: crashed: kernel BUG in f2fs_evict_inode run #18: crashed: kernel BUG in f2fs_evict_inode run #19: crashed: kernel BUG in corrupted testing current HEAD 97a8651cadce7c2b7c4d8f108b392eff31fe2c08 testing commit 97a8651cadce7c2b7c4d8f108b392eff31fe2c08 with gcc (GCC) 8.4.1 20210217 kernel signature: b17a8025299b0714136e8a74381f6f526c5b45fd32cce55e98593bdc6885c635 run #0: crashed: kernel BUG in f2fs_evict_inode run #1: crashed: kernel BUG in f2fs_evict_inode run #2: crashed: kernel BUG in f2fs_evict_inode run #3: crashed: kernel BUG in corrupted run #4: crashed: kernel BUG in corrupted run #5: crashed: kernel BUG in f2fs_evict_inode run #6: crashed: kernel BUG in f2fs_evict_inode run #7: crashed: kernel BUG in f2fs_evict_inode run #8: crashed: kernel BUG in f2fs_evict_inode run #9: crashed: kernel BUG in f2fs_evict_inode revisions tested: 2, total time: 23m5.609020703s (build: 16m2.517712447s, test: 6m41.362251112s) the crash still happens on HEAD commit msg: Linux 4.19.189 crash: kernel BUG in f2fs_evict_inode IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 ------------[ cut here ]------------ kernel BUG at fs/f2fs/inode.c:706! wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 7371 Comm: syz-executor.3 Not tainted 4.19.189-syzkaller #0 ieee80211 phy12: Selected rate control algorithm 'minstrel_ht' Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:f2fs_evict_inode+0xd06/0x1000 fs/f2fs/inode.c:706 Code: e9 df f8 ff ff 48 8b 7d a0 e8 76 77 a8 fe e9 a3 f3 ff ff 85 c0 0f 84 8b fc ff ff eb 9a 4c 89 e7 e8 5f 41 03 00 e9 94 f6 ff ff <0f> 0b e8 73 77 a8 fe e9 1c f8 ff ff 4c 89 f7 e8 66 77 a8 fe e9 2f RSP: 0018:ffff8881d8cef910 EFLAGS: 00010202 RAX: 0000000000000142 RBX: ffff8881d5135340 RCX: 0000000000000001 RDX: 1ffff110393726a2 RSI: 0000000000000001 RDI: ffff8881d482c444 RBP: ffff8881d8cef988 R08: 0000000000000000 R09: ffffed103ece473a R10: ffffed103ece473a R11: ffff8881f67239d3 R12: ffff8881c9b93140 R13: ffff8881d482c3c0 R14: dffffc0000000000 R15: ffff8881d51358f8 FS: 00007f54a6ccb700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005570c1b63140 CR3: 00000001d49c0004 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: evict+0x29c/0x590 fs/inode.c:559 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 iput_final fs/inode.c:1555 [inline] iput fs/inode.c:1581 [inline] iput+0x378/0x6b0 fs/inode.c:1567 f2fs_fill_super fs/f2fs/super.c:3064 [inline] f2fs_fill_super+0x4b80/0x70f0 fs/f2fs/super.c:2803 mount_bdev+0x26f/0x330 fs/super.c:1158 f2fs_mount+0x10/0x20 fs/f2fs/super.c:3234 mount_fs+0x7f/0x2b0 fs/super.c:1261 vfs_kern_mount.part.11+0x58/0x3d0 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x376/0x2710 fs/namespace.c:2799 ksys_mount+0xb1/0xd0 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xb9/0x150 fs/namespace.c:3026 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x466d6a Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007f54a6ccafa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466d6a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f54a6ccb000 RBP: 00007f54a6ccb040 R08: 00007f54a6ccb040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f54a6ccb000 R15: 00000000200015c0 Modules linked in: ---[ end trace ad73f26b43e4f547 ]--- ------------[ cut here ]------------ RIP: 0010:f2fs_evict_inode+0xd06/0x1000 fs/f2fs/inode.c:706 kernel BUG at fs/f2fs/inode.c:706! ------------[ cut here ]------------ Code: e9 df f8 ff ff 48 8b 7d a0 e8 76 77 a8 fe e9 a3 f3 ff ff 85 c0 0f 84 8b fc ff ff eb 9a 4c 89 e7 e8 5f 41 03 00 e9 94 f6 ff ff <0f> 0b e8 73 77 a8 fe e9 1c f8 ff ff 4c 89 f7 e8 66 77 a8 fe e9 2f kernel BUG at fs/f2fs/inode.c:706! IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready RSP: 0018:ffff8881d8cef910 EFLAGS: 00010202 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready RAX: 0000000000000142 RBX: ffff8881d5135340 RCX: 0000000000000001 invalid opcode: 0000 [#2] PREEMPT SMP KASAN RDX: 1ffff110393726a2 RSI: 0000000000000001 RDI: ffff8881d482c444 CPU: 0 PID: 7394 Comm: syz-executor.0 Tainted: G D 4.19.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:f2fs_evict_inode+0xd06/0x1000 fs/f2fs/inode.c:706 Code: e9 df f8 ff ff 48 8b 7d a0 e8 76 77 a8 fe e9 a3 f3 ff ff 85 c0 0f 84 8b fc ff ff eb 9a 4c 89 e7 e8 5f 41 03 00 e9 94 f6 ff ff <0f> 0b e8 73 77 a8 fe e9 1c f8 ff ff 4c 89 f7 e8 66 77 a8 fe e9 2f RSP: 0018:ffff8881d9fe7910 EFLAGS: 00010202 RAX: 0000000000000142 RBX: ffff8881d7625740 RCX: 0000000000000001 RDX: 1ffff110393792b2 RSI: 0000000000000001 RDI: ffff8881d43e4384 RBP: ffff8881d9fe7988 R08: 0000000000000000 R09: fffff94000fa437e R10: fffff94000fa437e R11: ffffea0007d21bf7 R12: ffff8881c9bc91c0 R13: ffff8881d43e4300 R14: dffffc0000000000 R15: ffff8881d7625cf8 FS: 00007f485a85f700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005570c1b63140 CR3: 00000001db7f9005 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: evict+0x29c/0x590 fs/inode.c:559 iput_final fs/inode.c:1555 [inline] iput fs/inode.c:1581 [inline] iput+0x378/0x6b0 fs/inode.c:1567 f2fs_fill_super fs/f2fs/super.c:3064 [inline] f2fs_fill_super+0x4b80/0x70f0 fs/f2fs/super.c:2803 mount_bdev+0x26f/0x330 fs/super.c:1158 f2fs_mount+0x10/0x20 fs/f2fs/super.c:3234 mount_fs+0x7f/0x2b0 fs/super.c:1261 vfs_kern_mount.part.11+0x58/0x3d0 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x376/0x2710 fs/namespace.c:2799 ksys_mount+0xb1/0xd0 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xb9/0x150 fs/namespace.c:3026 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x466d6a Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 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:00007f485a85efa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466d6a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f485a85f000 RBP: 00007f485a85f040 R08: 00007f485a85f040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f485a85f000 R15: 00000000200015c0 Modules linked in: invalid opcode: 0000 [#3] PREEMPT SMP KASAN RBP: ffff8881d8cef988 R08: 0000000000000000 R09: ffffed103ece473a CPU: 0 PID: 7393 Comm: syz-executor.4 Tainted: G D 4.19.189-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:f2fs_evict_inode+0xd06/0x1000 fs/f2fs/inode.c:706 Code: e9 df f8 ff ff 48 8b 7d a0 e8 76 77 a8 fe e9 a3 f3 ff ff 85 c0 0f 84 8b fc ff ff eb 9a 4c 89 e7 e8 5f 41 03 00 e9 94 f6 ff ff <0f> 0b e8 73 77 a8 fe e9 1c f8 ff ff 4c 89 f7 e8 66 77 a8 fe e9 2f R10: ffffed103ece473a R11: ffff8881f67239d3 R12: ffff8881c9b93140 RSP: 0018:ffff8881cd547910 EFLAGS: 00010202 RAX: 0000000000000142 RBX: ffff8881d76216c0 RCX: 0000000000000001 RDX: 1ffff1103937b0c2 RSI: 0000000000000001 RDI: ffff8881f44a6184 RBP: ffff8881cd547988 R08: 0000000000000000 R09: fffff94000eb95c6 R10: fffff94000eb95c6 R11: ffffea00075cae37 R12: ffff8881c9bd8240 R13: ffff8881f44a6100 R14: dffffc0000000000 R15: ffff8881d7621c78 FS: 00007fe4b13a9700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005570c1b63140 CR3: 00000001dbe61003 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: evict+0x29c/0x590 fs/inode.c:559 iput_final fs/inode.c:1555 [inline] iput fs/inode.c:1581 [inline] iput+0x378/0x6b0 fs/inode.c:1567 f2fs_fill_super fs/f2fs/super.c:3064 [inline] f2fs_fill_super+0x4b80/0x70f0 fs/f2fs/super.c:2803 mount_bdev+0x26f/0x330 fs/super.c:1158 f2fs_mount+0x10/0x20 fs/f2fs/super.c:3234 mount_fs+0x7f/0x2b0 fs/super.c:1261 vfs_kern_mount.part.11+0x58/0x3d0 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2469 [inline] do_mount+0x376/0x2710 fs/namespace.c:2799 ksys_mount+0xb1/0xd0 fs/namespace.c:3015 __do_sys_mount fs/namespace.c:3029 [inline] __se_sys_mount fs/namespace.c:3026 [inline] __x64_sys_mount+0xb9/0x150 fs/namespace.c:3026 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x466d6a Code: 48 c7 c2 bc ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 R13: ffff8881d482c3c0 R14: dffffc0000000000 R15: ffff8881d51358f8 RSP: 002b:00007fe4b13a8fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466d6a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fe4b13a9000 RBP: 00007fe4b13a9040 R08: 00007fe4b13a9040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000 R13: 0000000020000100 R14: 00007fe4b13a9000 R15: 00000000200015c0 Modules linked in: FS: 00007f54a6ccb700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 ---[ end trace ad73f26b43e4f548 ]--- CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready CR2: 00007f966fbd4010 CR3: 00000001d49c0001 CR4: 00000000001606e0 RIP: 0010:f2fs_evict_inode+0xd06/0x1000 fs/f2fs/inode.c:706 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Code: e9 df f8 ff ff 48 8b 7d a0 e8 76 77 a8 fe e9 a3 f3 ff ff 85 c0 0f 84 8b fc ff ff eb 9a 4c 89 e7 e8 5f 41 03 00 e9 94 f6 ff ff <0f> 0b e8 73 77 a8 fe e9 1c f8 ff ff 4c 89 f7 e8 66 77 a8 fe e9 2f DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready