bisecting fixing commit since a1b977b49b66c75e6c51a515f6700371ae720217 building syzkaller on d32b0bbf2f8cfe548553c4012e2c0f79040d999f testing commit a1b977b49b66c75e6c51a515f6700371ae720217 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 6735b5645875c9e4f2a810a23199b80d1c48e4318743f4a44f623ac407eb0350 run #0: crashed: kernel BUG in f2fs_evict_inode run #1: crashed: kernel BUG in f2fs_evict_inode run #2: crashed: kernel BUG in corrupted run #3: crashed: kernel BUG in f2fs_evict_inode run #4: crashed: kernel BUG in f2fs_evict_inode run #5: crashed: kernel BUG in corrupted run #6: crashed: kernel BUG in f2fs_evict_inode run #7: crashed: kernel BUG in f2fs_evict_inode run #8: crashed: kernel BUG in corrupted run #9: crashed: kernel BUG in f2fs_evict_inode run #10: crashed: kernel BUG in corrupted run #11: crashed: kernel BUG in f2fs_evict_inode run #12: crashed: kernel BUG in f2fs_evict_inode run #13: crashed: kernel BUG in f2fs_evict_inode run #14: crashed: kernel BUG in corrupted 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 corrupted run #19: crashed: kernel BUG in f2fs_evict_inode testing current HEAD e23d55af0e1fca9be5c99f0c37d48b289f4d6489 testing commit e23d55af0e1fca9be5c99f0c37d48b289f4d6489 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 04a8333c10847b786cfd19441c10510963589a9d9c69135d93852a2ebf284a81 run #0: crashed: kernel BUG in corrupted run #1: crashed: kernel BUG in f2fs_evict_inode run #2: crashed: kernel BUG in corrupted run #3: crashed: kernel BUG in f2fs_evict_inode run #4: crashed: kernel BUG in f2fs_evict_inode 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 corrupted revisions tested: 2, total time: 32m31.688394484s (build: 25m19.239889524s, test: 6m34.762811466s) the crash still happens on HEAD commit msg: Linux 4.19.205 crash: kernel BUG in corrupted IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready ------------[ cut here ]------------ kernel BUG at fs/f2fs/inode.c:706! wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 ------------[ cut here ]------------ kernel BUG at fs/f2fs/inode.c:706! ------------[ cut here ]------------ kernel BUG at fs/f2fs/inode.c:706! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 7367 Comm: syz-executor.0 Not tainted 4.19.205-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 c6 78 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 c3 78 a8 fe e9 1c f8 ff ff 4c 89 f7 e8 b6 78 a8 fe e9 2f RSP: 0018:ffff8881e76ff910 EFLAGS: 00010202 RAX: 0000000000000142 RBX: ffff8881d4979c00 RCX: 0000000000000001 RDX: 1ffff11039074aaa RSI: 0000000000000001 RDI: ffff8881de3cae04 RBP: ffff8881e76ff988 R08: 0000000000000000 R09: ffffed103ecc4742 R10: ffffed103ecc4742 R11: ffff8881f6623a13 R12: ffff8881c83a5180 R13: ffff8881de3cad80 R14: dffffc0000000000 R15: ffff8881d497a1b8 FS: 00007fc6ada7b700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa82b80c000 CR3: 00000001d57e4004 CR4: 00000000001606e0 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:2492 [inline] do_mount+0x376/0x2630 fs/namespace.c:2822 ksys_mount+0xb1/0xd0 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xb9/0x150 fs/namespace.c:3049 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:00007fc6ada7afa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466d6a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007fc6ada7b000 RBP: 00007fc6ada7b040 R08: 00007fc6ada7b040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000 R13: 0000000020000100 R14: 00007fc6ada7b000 R15: 00000000200015c0 Modules linked in: invalid opcode: 0000 [#2] PREEMPT SMP KASAN CPU: 0 PID: 7357 Comm: syz-executor.1 Tainted: G D 4.19.205-syzkaller #0 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 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 c6 78 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 c3 78 a8 fe e9 1c f8 ff ff 4c 89 f7 e8 b6 78 a8 fe e9 2f RSP: 0018:ffff8881d5627910 EFLAGS: 00010202 RAX: 0000000000000142 RBX: ffff8881d5091c40 RCX: 0000000000000001 RDX: 1ffff110390780ba RSI: 0000000000000001 RDI: ffff8881d5ade404 RBP: ffff8881d5627988 R08: 0000000000000000 R09: ffffed103ecc4742 R10: ffffed103ecc4742 R11: ffff8881f6623a13 R12: ffff8881c83c0200 R13: ffff8881d5ade380 R14: dffffc0000000000 R15: ffff8881d50921f8 FS: 00007f6cfef4d700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff7ccc3ff8 CR3: 00000001d7c01005 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:2492 [inline] do_mount+0x376/0x2630 fs/namespace.c:2822 ksys_mount+0xb1/0xd0 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xb9/0x150 fs/namespace.c:3049 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:00007f6cfef4cfa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466d6a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f6cfef4d000 RBP: 00007f6cfef4d040 R08: 00007f6cfef4d040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f6cfef4d000 R15: 00000000200015c0 Modules linked in: invalid opcode: 0000 [#3] PREEMPT SMP KASAN CPU: 1 PID: 7356 Comm: syz-executor.2 Tainted: G D 4.19.205-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 c6 78 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 c3 78 a8 fe e9 1c f8 ff ff 4c 89 f7 e8 b6 78 a8 fe e9 2f ---[ end trace 011d9971b06bc5b0 ]--- RSP: 0018:ffff8881e11ef910 EFLAGS: 00010202 RAX: 0000000000000142 RBX: ffff8881d12698c0 RCX: 0000000000000001 RDX: 1ffff1103907ccca RSI: 0000000000000001 RDI: ffff8881da27e104 RBP: ffff8881e11ef988 R08: 0000000000000000 R09: ffffed103ece4742 R10: ffffed103ece4742 R11: ffff8881f6723a13 R12: ffff8881c83e6280 R13: ffff8881da27e080 R14: dffffc0000000000 R15: ffff8881d1269e78 FS: 00007f3660341700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa82b812000 CR3: 00000001d63d9002 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: evict+0x29c/0x590 fs/inode.c:559 RIP: 0010:f2fs_evict_inode+0xd06/0x1000 fs/f2fs/inode.c:706 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 Code: e9 df f8 ff ff 48 8b 7d a0 e8 c6 78 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 c3 78 a8 fe e9 1c f8 ff ff 4c 89 f7 e8 b6 78 a8 fe e9 2f 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:2492 [inline] do_mount+0x376/0x2630 fs/namespace.c:2822 RSP: 0018:ffff8881e76ff910 EFLAGS: 00010202 ksys_mount+0xb1/0xd0 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xb9/0x150 fs/namespace.c:3049 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:00007f3660340fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466d6a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f3660341000 RBP: 00007f3660341040 R08: 00007f3660341040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000 RAX: 0000000000000142 RBX: ffff8881d4979c00 RCX: 0000000000000001 R13: 0000000020000100 R14: 00007f3660341000 R15: 00000000200015c0 Modules linked in: ---[ end trace 011d9971b06bc5b1 ]--- RDX: 1ffff11039074aaa RSI: 0000000000000001 RDI: ffff8881de3cae04 RIP: 0010:f2fs_evict_inode+0xd06/0x1000 fs/f2fs/inode.c:706 ------------[ cut here ]------------ Code: e9 df f8 ff ff 48 8b 7d a0 e8 c6 78 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 c3 78 a8 fe e9 1c f8 ff ff 4c 89 f7 e8 b6 78 a8 fe e9 2f kernel BUG at fs/f2fs/inode.c:706! ieee80211 phy12: Selected rate control algorithm 'minstrel_ht' RSP: 0018:ffff8881e76ff910 EFLAGS: 00010202 IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready RAX: 0000000000000142 RBX: ffff8881d4979c00 RCX: 0000000000000001 invalid opcode: 0000 [#4] PREEMPT SMP KASAN RDX: 1ffff11039074aaa RSI: 0000000000000001 RDI: ffff8881de3cae04 CPU: 0 PID: 7399 Comm: syz-executor.4 Tainted: G D 4.19.205-syzkaller #0 RBP: ffff8881e76ff988 R08: 0000000000000000 R09: ffffed103ecc4742 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 R10: ffffed103ecc4742 R11: ffff8881f6623a13 R12: ffff8881c83a5180 RIP: 0010:f2fs_evict_inode+0xd06/0x1000 fs/f2fs/inode.c:706 Code: e9 df f8 ff ff 48 8b 7d a0 e8 c6 78 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 c3 78 a8 fe e9 1c f8 ff ff 4c 89 f7 e8 b6 78 a8 fe e9 2f RSP: 0018:ffff8881d419f910 EFLAGS: 00010202 RAX: 0000000000000142 RBX: ffff8881d51fc100 RCX: 0000000000000001 RDX: 1ffff11038e05cda RSI: 0000000000000001 RDI: ffff8881cfad6284 RBP: ffff8881d419f988 R08: 0000000000000000 R09: fffff94000fa3246 R10: fffff94000fa3246 R11: ffffea0007d19237 R12: ffff8881c702e300 R13: ffff8881cfad6200 R14: dffffc0000000000 R15: ffff8881d51fc6b8 FS: 00007f67fecc1700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcb4ca6c000 CR3: 00000001d4687005 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:2492 [inline] do_mount+0x376/0x2630 fs/namespace.c:2822 ksys_mount+0xb1/0xd0 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xb9/0x150 fs/namespace.c:3049 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:00007f67fecc0fa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 0000000000466d6a RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f67fecc1000 RBP: 00007f67fecc1040 R08: 00007f67fecc1040 R09: 0000000020000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000020000000 R13: 0000000020000100 R14: 00007f67fecc1000 R15: 00000000200015c0 Modules linked in: R13: ffff8881de3cad80 R14: dffffc0000000000 R15: ffff8881d497a1b8 RBP: ffff8881e76ff988 R08: 0000000000000000 R09: ffffed103ecc4742 wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 R10: ffffed103ecc4742 R11: ffff8881f6623a13 R12: ffff8881c83a5180 ---[ end trace 011d9971b06bc5b2 ]--- R13: ffff8881de3cad80 R14: dffffc0000000000 R15: ffff8881d497a1b8 RIP: 0010:f2fs_evict_inode+0xd06/0x1000 fs/f2fs/inode.c:706 FS: 00007f6cfef4d700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 ieee80211 phy13: Selected rate control algorithm 'minstrel_ht' CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 CR2: 0000555d1ee2f6c8 CR3: 00000001d7c01003 CR4: 00000000001606f0 Code: e9 df f8 ff ff 48 8b 7d a0 e8 c6 78 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 c3 78 a8 fe e9 1c f8 ff ff 4c 89 f7 e8 b6 78 a8 fe e9 2f DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 FS: 00007fc6ada7b700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcb4ca6c000 CR3: 00000001d57e4005 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400