bisecting fixing commit since a1b977b49b66c75e6c51a515f6700371ae720217 building syzkaller on 1880b4a9f394370a7d1fcb5c1cfca0fa1127b463 testing commit a1b977b49b66c75e6c51a515f6700371ae720217 with gcc (GCC) 8.4.1 20210217 kernel signature: a492c8030a7cd2552613a198fdc2653927bd8ffa4875a433fc289d37c9fe62e2 all runs: crashed: WARNING in drop_nlink testing current HEAD 9a2dc0e6c531d595bcdf2c66d0be131679bd02df testing commit 9a2dc0e6c531d595bcdf2c66d0be131679bd02df with gcc (GCC) 8.4.1 20210217 kernel signature: fe5963996636aeaf3eadb1ebdf318e2296b6297519fc5f0deea22cb9049a0baa all runs: crashed: WARNING in drop_nlink revisions tested: 2, total time: 33m40.907239985s (build: 26m28.633905554s, test: 6m33.704275087s) the crash still happens on HEAD commit msg: Linux 4.19.194 crash: WARNING in drop_nlink IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready MINIX-fs: mounting unchecked file system, running fsck is recommended IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7327 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Modules linked in: CPU: 1 PID: 7327 Comm: syz-executor.3 Not tainted 4.19.194-syzkaller #0 IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 MINIX-fs: mounting unchecked file system, running fsck is recommended RSP: 0018:ffff8881d5a579e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881c8245570 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RBP: ffff8881d5a579f8 R08: ffffed103ece5081 R09: ffffed103ece5080 R10: ffffed103ece5080 R11: ffff8881f6728407 R12: ffff8881c82455b8 R13: ffff8881c8245100 R14: 0000000000000000 R15: ffff8881ce5b6080 FS: 00007fcdc742c700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe5d4fff50 CR3: 00000001d0245003 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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:00007fcdc742c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 R13: 00007fffc7a9af6f R14: 00007fcdc742c300 R15: 0000000000022000 irq event stamp: 1258 hardirqs last enabled at (1257): [] console_unlock+0xa4a/0xe20 kernel/printk/printk.c:2489 hardirqs last disabled at (1258): [] trace_hardirqs_off_thunk+0x1a/0x1c wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 softirqs last enabled at (1062): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (1062): [] wb_queue_work+0x1e3/0x3c0 fs/fs-writeback.c:204 softirqs last disabled at (1058): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (1058): [] wb_queue_work+0x84/0x3c0 fs/fs-writeback.c:196 ---[ end trace 41e375cd81c130fd ]--- IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 MINIX-fs: mounting unchecked file system, running fsck is recommended ------------[ cut here ]------------ MINIX-fs: mounting unchecked file system, running fsck is recommended wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready WARNING: CPU: 0 PID: 7406 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 ------------[ cut here ]------------ Modules linked in: CPU: 0 PID: 7406 Comm: syz-executor.3 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881d42cf9e0 EFLAGS: 00010282 WARNING: CPU: 1 PID: 7420 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 RAX: 0000000000000024 RBX: ffff8881c82fc6f0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 Modules linked in: RBP: ffff8881d42cf9f8 R08: ffffed103ecc5081 R09: ffffed103ecc5080 CPU: 1 PID: 7420 Comm: syz-executor.2 Tainted: G W 4.19.194-syzkaller #0 R10: ffffed103ecc5080 R11: ffff8881f6628407 R12: ffff8881c82fc738 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 R13: ffff8881c82fc280 R14: 0000000000000000 R15: ffff8881c9fe0080 FS: 00007fcdc742c700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000558d167f0e28 CR3: 00000001f4baa001 CR4: 00000000001606f0 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 RSP: 0018:ffff8881d71279e0 EFLAGS: 00010282 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: RAX: 0000000000000024 RBX: ffff8881c826a960 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 RBP: ffff8881d71279f8 R08: ffffed103ece5081 R09: ffffed103ece5080 R10: ffffed103ece5080 R11: ffff8881f6728407 R12: ffff8881c826a9a8 R13: ffff8881c826a4f0 R14: 0000000000000000 R15: ffff8881c9f72080 FS: 00007f6b5ef52700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdf08bbf58 CR3: 00000001f482e002 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 vfs_rename+0xa13/0x1860 fs/namei.c:4479 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 do_renameat2+0x60d/0xa00 fs/namei.c:4629 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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:00007fcdc742c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 R13: 00007fffc7a9af6f R14: 00007fcdc742c300 R15: 0000000000022000 entry_SYSCALL_64_after_hwframe+0x49/0xbe irq event stamp: 1486 RIP: 0033:0x465809 hardirqs last enabled at (1485): [] __free_pages_ok+0x616/0xd60 mm/page_alloc.c:1286 hardirqs last disabled at (1486): [] trace_hardirqs_off_thunk+0x1a/0x1c Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 softirqs last enabled at (1460): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 RSP: 002b:00007f6b5ef52188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 softirqs last disabled at (1213): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (1213): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 41e375cd81c130fe ]--- RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 R13: 00007ffd9c2240af R14: 00007f6b5ef52300 R15: 0000000000022000 irq event stamp: 1486 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 hardirqs last enabled at (1485): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (1485): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (1486): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (1482): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (1467): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (1467): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 41e375cd81c130ff ]--- wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 MINIX-fs: mounting unchecked file system, running fsck is recommended IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 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 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 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_CHANGE): wlan0: link becomes ready IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended minix_free_inode: bit 5 already cleared MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended ------------[ cut here ]------------ ------------[ cut here ]------------ ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7486 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 WARNING: CPU: 0 PID: 7483 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Modules linked in: Modules linked in: CPU: 1 PID: 7486 Comm: syz-executor.1 Tainted: G W 4.19.194-syzkaller #0 CPU: 0 PID: 7483 Comm: syz-executor.3 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881cde579e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881c83e9670 RCX: 0000000000000000 RSP: 0018:ffff8881db7d79e0 EFLAGS: 00010282 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RAX: 0000000000000024 RBX: ffff8881c83c4530 RCX: 0000000000000000 RBP: ffff8881cde579f8 R08: ffffed103ecc5081 R09: ffffed103ecc5080 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 R10: ffffed103ecc5080 R11: ffff8881f6628407 R12: ffff8881c83e96b8 RBP: ffff8881db7d79f8 R08: ffffed103ece5081 R09: ffffed103ece5080 R13: ffff8881c83e9200 R14: 0000000000000000 R15: ffff8881c9f15080 FS: 00007fcdc742c700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 R10: ffffed103ece5080 R11: ffff8881f6728407 R12: ffff8881c83c4578 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6b5ef53000 CR3: 00000001f291e006 CR4: 00000000001606f0 R13: ffff8881c83c6a60 R14: 0000000000000000 R15: ffff8881c9f54080 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 FS: 00007f086ae66700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 CR2: 00007fbc4fe12000 CR3: 00000001f36c1005 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 RSP: 002b:00007fcdc742c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 entry_SYSCALL_64_after_hwframe+0x49/0xbe RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 RIP: 0033:0x465809 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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:00007f086ae66188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 R13: 00007fffc7a9af6f R14: 00007fcdc742c300 R15: 0000000000022000 RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 irq event stamp: 1134 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a hardirqs last enabled at (1133): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (1133): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 hardirqs last disabled at (1134): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (974): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (974): [] wb_queue_work+0x1e3/0x3c0 fs/fs-writeback.c:204 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 softirqs last disabled at (970): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (970): [] wb_queue_work+0x84/0x3c0 fs/fs-writeback.c:196 R13: 00007ffd118a46ef R14: 00007f086ae66300 R15: 0000000000022000 ---[ end trace 41e375cd81c13100 ]--- irq event stamp: 1302 WARNING: CPU: 0 PID: 7470 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 hardirqs last enabled at (1301): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (1301): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 Modules linked in: hardirqs last disabled at (1302): [] trace_hardirqs_off_thunk+0x1a/0x1c CPU: 0 PID: 7470 Comm: syz-executor.0 Tainted: G W 4.19.194-syzkaller #0 softirqs last enabled at (1296): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 softirqs last disabled at (1197): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (1197): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 ---[ end trace 41e375cd81c13101 ]--- Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881cf49f9e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881c83c55b0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RBP: ffff8881cf49f9f8 R08: ffffed103ecc5081 R09: ffffed103ecc5080 R10: ffffed103ecc5080 R11: ffff8881f6628407 R12: ffff8881c83c55f8 R13: ffff8881c83c5140 R14: 0000000000000000 R15: ffff8881c8400080 FS: 00007f1cec67d700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb1c3084000 CR3: 00000001f3b82003 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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:00007f1cec67d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 R13: 00007ffd38d99e9f R14: 00007f1cec67d300 R15: 0000000000022000 irq event stamp: 1146 hardirqs last enabled at (1145): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (1145): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (1146): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (1140): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (1103): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (1103): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 41e375cd81c13102 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7477 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Modules linked in: CPU: 0 PID: 7477 Comm: syz-executor.2 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881cdebf9e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881c83ec6f0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RBP: ffff8881cdebf9f8 R08: ffffed103ecc5081 R09: ffffed103ecc5080 R10: ffffed103ecc5080 R11: ffff8881f6628407 R12: ffff8881c83ec738 R13: ffff8881c83ee920 R14: 0000000000000000 R15: ffff8881c9f53080 FS: 00007f6b5ef52700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6b5ef10718 CR3: 00000001f3e96004 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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:00007f6b5ef52188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 MINIX-fs: mounting unchecked file system, running fsck is recommended RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 R13: 00007ffd9c2240af R14: 00007f6b5ef52300 R15: 0000000000022000 irq event stamp: 1280 hardirqs last enabled at (1279): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (1279): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (1280): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (1274): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (1267): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (1267): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 41e375cd81c13103 ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7497 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Modules linked in: CPU: 1 PID: 7497 Comm: syz-executor.4 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881d035f9e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881c83e5b20 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RBP: ffff8881d035f9f8 R08: ffffed103ece5081 R09: ffffed103ece5080 R10: ffffed103ece5080 R11: ffff8881f6728407 R12: ffff8881c83e5b68 R13: ffff8881c6827b60 R14: 0000000000000000 R15: ffff8881c9f19080 FS: 00007fa1537a4700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f62b00390a8 CR3: 00000001f2f32003 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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:00007fa1537a4188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 RAX: ffffffffffffffda RBX: 000000000055bfa8 RCX: 0000000000465809 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 0000000000000009 RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bfa8 R13: 00007ffc290a1fdf R14: 00007fa1537a4300 R15: 0000000000022000 irq event stamp: 420 hardirqs last enabled at (419): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (419): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (420): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (414): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (283): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (283): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 41e375cd81c13104 ]--- MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended ------------[ cut here ]------------ MINIX-fs: mounting unchecked file system, running fsck is recommended WARNING: CPU: 0 PID: 7552 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 MINIX-fs: mounting unchecked file system, running fsck is recommended Modules linked in: CPU: 0 PID: 7552 Comm: syz-executor.0 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881c7a179e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881c83ff4f0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RBP: ffff8881c7a179f8 R08: ffffed103ecc5081 R09: ffffed103ecc5080 R10: ffffed103ecc5080 R11: ffff8881f6628407 R12: ffff8881c83ff538 R13: ffff8881c83ff080 R14: 0000000000000000 R15: ffff8881c8424080 FS: 00007f1cec67d700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe45229ff8 CR3: 00000001d393e004 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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:00007f1cec67d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 R13: 00007ffd38d99e9f R14: 00007f1cec67d300 R15: 0000000000022000 irq event stamp: 1220 hardirqs last enabled at (1219): [] __free_pages_ok+0x616/0xd60 mm/page_alloc.c:1286 hardirqs last disabled at (1220): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (1194): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (1111): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (1111): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 41e375cd81c13105 ]--- MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended ------------[ cut here ]------------ MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7598 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Modules linked in: MINIX-fs: mounting unchecked file system, running fsck is recommended CPU: 0 PID: 7598 Comm: syz-executor.4 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881d144f9e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881c6817aa0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RBP: ffff8881d144f9f8 R08: ffffed103ecc5081 R09: ffffed103ecc5080 R10: ffffed103ecc5080 R11: ffff8881f6628407 R12: ffff8881c6817ae8 R13: ffff8881c6817630 R14: 0000000000000000 R15: ffff8881c9f5a080 FS: 00007fa1537c5700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbc4fe33000 CR3: 00000001d44c7002 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 WARNING: CPU: 1 PID: 7595 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Modules linked in: CPU: 1 PID: 7595 Comm: syz-executor.5 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 vfs_rename+0xa13/0x1860 fs/namei.c:4479 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881d1d6f9e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881c6819b60 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 do_renameat2+0x60d/0xa00 fs/namei.c:4629 RBP: ffff8881d1d6f9f8 R08: ffffed103ece5081 R09: ffffed103ece5080 R10: ffffed103ece5080 R11: ffff8881f6728407 R12: ffff8881c6819ba8 R13: ffff8881c68196f0 R14: 0000000000000000 R15: ffff8881c9ee7080 FS: 00007fbc4fe32700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000558d167f8e08 CR3: 00000001d58ce003 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe vfs_rename+0xa13/0x1860 fs/namei.c:4479 RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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:00007fa1537c5188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 do_renameat2+0x60d/0xa00 fs/namei.c:4629 RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 R13: 00007ffc290a1fdf R14: 00007fa1537c5300 R15: 0000000000022000 irq event stamp: 1684 hardirqs last enabled at (1683): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (1683): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (1684): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (1680): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (1531): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (1531): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 41e375cd81c13106 ]--- __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 ------------[ cut here ]------------ RSP: 002b:00007fbc4fe32188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 R13: 00007fff261eedbf R14: 00007fbc4fe32300 R15: 0000000000022000 irq event stamp: 1092 hardirqs last enabled at (1091): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (1091): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (1092): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (1084): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (1069): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (1069): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 41e375cd81c13107 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7614 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 WARNING: CPU: 1 PID: 7596 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Modules linked in: Modules linked in: CPU: 0 PID: 7614 Comm: syz-executor.2 Tainted: G W 4.19.194-syzkaller #0 CPU: 1 PID: 7596 Comm: syz-executor.0 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881c66379e0 EFLAGS: 00010282 RSP: 0018:ffff8881d1a6f9e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881cc918080 RCX: 0000000000000000 RAX: 0000000000000024 RBX: ffff8881c681a100 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RBP: ffff8881c66379f8 R08: ffffed103ecc5081 R09: ffffed103ecc5080 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 R10: ffffed103ecc5080 R11: ffff8881f6628407 R12: ffff8881cc9180c8 RBP: ffff8881d1a6f9f8 R08: ffffed103ece5081 R09: ffffed103ece5080 R10: ffffed103ece5080 R11: ffff8881f6728407 R12: ffff8881c681a148 R13: ffff8881cc9c1a20 R14: 0000000000000000 R15: ffff8881c8478080 R13: ffff8881cc908530 R14: 0000000000000000 R15: ffff8881c84ba080 FS: 00007f6b5ef52700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 FS: 00007f1cec67d700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa153783718 CR3: 00000001e8054005 CR4: 00000000001606f0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 CR2: 00007fffaceeec8c CR3: 00000001d4e62003 CR4: 00000000001606e0 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 vfs_rename+0xa13/0x1860 fs/namei.c:4479 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 do_renameat2+0x60d/0xa00 fs/namei.c:4629 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 entry_SYSCALL_64_after_hwframe+0x49/0xbe do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 RIP: 0033:0x465809 entry_SYSCALL_64_after_hwframe+0x49/0xbe Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 RIP: 0033:0x465809 RSP: 002b:00007f6b5ef52188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 RSP: 002b:00007f1cec67d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 R13: 00007ffd9c2240af R14: 00007f6b5ef52300 R15: 0000000000022000 R13: 00007ffd38d99e9f R14: 00007f1cec67d300 R15: 0000000000022000 irq event stamp: 1168 irq event stamp: 1276 hardirqs last enabled at (1167): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (1167): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (1168): [] trace_hardirqs_off_thunk+0x1a/0x1c hardirqs last enabled at (1275): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (1275): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 softirqs last enabled at (986): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (986): [] wb_queue_work+0x1e3/0x3c0 fs/fs-writeback.c:204 softirqs last disabled at (982): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (982): [] wb_queue_work+0x84/0x3c0 fs/fs-writeback.c:196 hardirqs last disabled at (1276): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (1256): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 ---[ end trace 41e375cd81c13108 ]--- softirqs last disabled at (1127): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (1127): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 41e375cd81c13109 ]--- MINIX-fs: mounting unchecked file system, running fsck is recommended ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7641 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Modules linked in: CPU: 0 PID: 7641 Comm: syz-executor.3 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881c66379e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881cc9bf0c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RBP: ffff8881c66379f8 R08: ffffed103ecc5081 R09: ffffed103ecc5080 R10: ffffed103ecc5080 R11: ffff8881f6628407 R12: ffff8881cc9bf108 R13: ffff8881cc9c89e0 R14: 0000000000000000 R15: ffff8881c8489080 FS: 00007fcdc742c700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcdc742d000 CR3: 00000001e2db2006 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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:00007fcdc742c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 R13: 00007fffc7a9af6f R14: 00007fcdc742c300 R15: 0000000000022000 irq event stamp: 1190 hardirqs last enabled at (1189): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (1189): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (1190): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (1184): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (1101): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (1101): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 41e375cd81c1310a ]--- MINIX-fs: mounting unchecked file system, running fsck is recommended ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7660 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Modules linked in: CPU: 0 PID: 7660 Comm: syz-executor.2 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881cdfef9e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881cc93caa0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RBP: ffff8881cdfef9f8 R08: ffffed103ecc5081 R09: ffffed103ecc5080 R10: ffffed103ecc5080 R11: ffff8881f6628407 R12: ffff8881cc93cae8 R13: ffff8881cc93c630 R14: 0000000000000000 R15: ffff8881c84e6080 FS: 00007f6b5ef52700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f086ae65fe8 CR3: 00000001e833c003 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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:00007f6b5ef52188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 R13: 00007ffd9c2240af R14: 00007f6b5ef52300 R15: 0000000000022000 irq event stamp: 1260 hardirqs last enabled at (1259): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (1259): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (1260): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (1254): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (1155): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (1155): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 41e375cd81c1310b ]--- MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7674 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Modules linked in: CPU: 1 PID: 7674 Comm: syz-executor.1 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ------------[ cut here ]------------ RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881cf49f9e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881cc90c0c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RBP: ffff8881cf49f9f8 R08: ffffed103ece5081 R09: ffffed103ece5080 R10: ffffed103ece5080 R11: ffff8881f6728407 R12: ffff8881cc90c108 R13: ffff8881cc90d9e0 R14: 0000000000000000 R15: ffff8881c9ec9080 FS: 00007f086ae45700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe45229ff8 CR3: 00000001e2db2001 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 WARNING: CPU: 0 PID: 7722 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Modules linked in: CPU: 0 PID: 7722 Comm: syz-executor.5 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881cc1479e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881c685d5f0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RBP: ffff8881cc1479f8 R08: ffffed103ecc5081 R09: ffffed103ecc5080 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 R10: ffffed103ecc5080 R11: ffff8881f6628407 R12: ffff8881c685d638 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 R13: ffff8881c685d180 R14: 0000000000000000 R15: ffff8881c9f88080 FS: 00007fbc4fdf0700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 entry_SYSCALL_64_after_hwframe+0x49/0xbe CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb1c30be000 CR3: 00000001d980f005 CR4: 00000000001606f0 RIP: 0033:0x465809 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: RSP: 002b:00007f086ae45188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 RAX: ffffffffffffffda RBX: 000000000055bfa8 RCX: 0000000000465809 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 0000000000000005 RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bfa8 R13: 00007ffd118a46ef R14: 00007f086ae45300 R15: 0000000000022000 irq event stamp: 5602 vfs_rename+0xa13/0x1860 fs/namei.c:4479 hardirqs last enabled at (5601): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (5601): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (5602): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (5452): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (5452): [] wb_queue_work+0x1e3/0x3c0 fs/fs-writeback.c:204 softirqs last disabled at (5448): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (5448): [] wb_queue_work+0x84/0x3c0 fs/fs-writeback.c:196 ---[ end trace 41e375cd81c1310c ]--- do_renameat2+0x60d/0xa00 fs/namei.c:4629 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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:00007fbc4fdf0188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 RAX: ffffffffffffffda RBX: 000000000055c050 RCX: 0000000000465809 RDX: 000000000000000a RSI: 0000000020000500 RDI: 0000000000000005 RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055c050 R13: 00007fff261eedbf R14: 00007fbc4fdf0300 R15: 0000000000022000 irq event stamp: 344 hardirqs last enabled at (343): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (343): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (344): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (338): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (319): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (319): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 41e375cd81c1310d ]--- ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7723 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Modules linked in: CPU: 1 PID: 7723 Comm: syz-executor.2 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881e327f9e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881cc9041c0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RBP: ffff8881e327f9f8 R08: ffffed103ece5081 R09: ffffed103ece5080 R10: ffffed103ece5080 R11: ffff8881f6728407 R12: ffff8881cc904208 R13: ffff8881cc906ae0 R14: 0000000000000000 R15: ffff8881c84e0080 FS: 00007f6b5ef31700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000014bd888 CR3: 00000001e2346001 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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:00007f6b5ef31188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 RAX: ffffffffffffffda RBX: 000000000055bfa8 RCX: 0000000000465809 RDX: 000000000000000b RSI: 0000000020000500 RDI: 000000000000000c RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bfa8 R13: 00007ffd9c2240af R14: 00007f6b5ef31300 R15: 0000000000022000 irq event stamp: 542 hardirqs last enabled at (541): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (541): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (542): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (536): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (441): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (441): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 ---[ end trace 41e375cd81c1310e ]--- MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended MINIX-fs: mounting unchecked file system, running fsck is recommended ------------[ cut here ]------------ ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7780 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 WARNING: CPU: 0 PID: 7760 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Modules linked in: Modules linked in: CPU: 1 PID: 7780 Comm: syz-executor.0 Tainted: G W 4.19.194-syzkaller #0 CPU: 0 PID: 7760 Comm: syz-executor.5 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881d9ae79e0 EFLAGS: 00010282 RSP: 0018:ffff8881c72379e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881c689db20 RCX: 0000000000000000 RAX: 0000000000000024 RBX: ffff8881c6879180 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RBP: ffff8881d9ae79f8 R08: ffffed103ece5081 R09: ffffed103ece5080 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 R10: ffffed103ece5080 R11: ffff8881f6728407 R12: ffff8881c689db68 RBP: ffff8881c72379f8 R08: ffffed103ecc5081 R09: ffffed103ecc5080 R10: ffffed103ecc5080 R11: ffff8881f6628407 R12: ffff8881c68791c8 R13: ffff8881c689d6b0 R14: 0000000000000000 R15: ffff8881c849f080 R13: ffff8881c687a630 R14: 0000000000000000 R15: ffff8881c9e18080 FS: 00007fbc4fe32700(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 FS: 00007f1cec63b700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002bba708 CR3: 00000001e1b00001 CR4: 00000000001606f0 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000055c000 CR3: 00000001d1b65006 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 vfs_rename+0xa13/0x1860 fs/namei.c:4479 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 do_renameat2+0x60d/0xa00 fs/namei.c:4629 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465809 RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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:00007f1cec63b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 RSP: 002b:00007fbc4fe32188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 RAX: ffffffffffffffda RBX: 000000000055c050 RCX: 0000000000465809 RAX: ffffffffffffffda RBX: 000000000055bf00 RCX: 0000000000465809 RDX: 0000000000000008 RSI: 0000000020000500 RDI: 0000000000000005 RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 RDX: 0000000000000009 RSI: 0000000020000500 RDI: 000000000000000a R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055c050 RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bf00 R13: 00007ffd38d99e9f R14: 00007f1cec63b300 R15: 0000000000022000 irq event stamp: 218 R13: 00007fff261eedbf R14: 00007fbc4fe32300 R15: 0000000000022000 irq event stamp: 1236 hardirqs last enabled at (217): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (217): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (218): [] trace_hardirqs_off_thunk+0x1a/0x1c hardirqs last enabled at (1235): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (1235): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (1236): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (212): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318 softirqs last disabled at (127): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (127): [] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 softirqs last enabled at (1060): [] spin_unlock_bh include/linux/spinlock.h:374 [inline] softirqs last enabled at (1060): [] wb_queue_work+0x1e3/0x3c0 fs/fs-writeback.c:204 softirqs last disabled at (1056): [] spin_lock_bh include/linux/spinlock.h:334 [inline] softirqs last disabled at (1056): [] wb_queue_work+0x84/0x3c0 fs/fs-writeback.c:196 ---[ end trace 41e375cd81c1310f ]--- ---[ end trace 41e375cd81c13110 ]--- minix_free_inode: bit 5 already cleared ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7781 at fs/inode.c:286 drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Modules linked in: CPU: 1 PID: 7781 Comm: syz-executor.2 Tainted: G W 4.19.194-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drop_nlink.cold.19+0xc/0x3c fs/inode.c:286 Code: e0 2a 80 3c 02 00 75 0c 48 8b 83 d0 00 00 00 e9 44 7b bd fa 4c 89 e7 e8 1a 9a ae fa eb ea 48 c7 c7 00 b6 53 87 e8 ce 02 ff ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 0f b6 04 02 RSP: 0018:ffff8881df9a79e0 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881c68a95b0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff878b7800 RDI: ffffffff8a3e3aa0 RBP: ffff8881df9a79f8 R08: ffffed103ece5081 R09: ffffed103ece5080 R10: ffffed103ece5080 R11: ffff8881f6728407 R12: ffff8881c68a95f8 R13: ffff8881c68a9140 R14: 0000000000000000 R15: ffff8881c9f8f080 FS: 00007f6b5ef31700(0000) GS:ffff8881f6700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6b5ef32000 CR3: 00000001e10c2004 CR4: 00000000001606e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2107 [inline] minix_rename+0x330/0x720 fs/minix/namei.c:226 vfs_rename+0xa13/0x1860 fs/namei.c:4479 do_renameat2+0x60d/0xa00 fs/namei.c:4629 __do_sys_renameat fs/namei.c:4670 [inline] __se_sys_renameat fs/namei.c:4667 [inline] __x64_sys_renameat+0x95/0xf0 fs/namei.c:4667 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x465809 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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:00007f6b5ef31188 EFLAGS: 00000246 ORIG_RAX: 0000000000000108 RAX: ffffffffffffffda RBX: 000000000055bfa8 RCX: 0000000000465809 RDX: 0000000000000008 RSI: 0000000020000500 RDI: 0000000000000009 RBP: 00000000004af675 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200017c0 R11: 0000000000000246 R12: 000000000055bfa8 R13: 00007ffd9c2240af R14: 00007f6b5ef31300 R15: 0000000000022000 irq event stamp: 654 hardirqs last enabled at (653): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (653): [] _raw_spin_unlock_irq+0x27/0x90 kernel/locking/spinlock.c:192 hardirqs last disabled at (654): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (648): [] __do_softirq+0x62d/0x919 kernel/softirq.c:318