./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1179043562 <...> Warning: Permanently added '10.128.0.22' (ED25519) to the list of known hosts. execve("./syz-executor1179043562", ["./syz-executor1179043562"], 0x7ffc16765b20 /* 10 vars */) = 0 brk(NULL) = 0x555566593000 brk(0x555566593d00) = 0x555566593d00 arch_prctl(ARCH_SET_FS, 0x555566593380) = 0 set_tid_address(0x555566593650) = 282 set_robust_list(0x555566593660, 24) = 0 rseq(0x555566593ca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1179043562", 4096) = 28 getrandom("\x5d\x17\xca\x21\x5b\xc1\xa0\x0e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555566593d00 brk(0x5555665b4d00) = 0x5555665b4d00 brk(0x5555665b5000) = 0x5555665b5000 mprotect(0x7f2abde63000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 mkdir("./syzkaller.aKV27Z", 0700) = 0 chmod("./syzkaller.aKV27Z", 0777) = 0 chdir("./syzkaller.aKV27Z") = 0 mkdir("./0", 0777) = 0 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555566593650) = 284 ./strace-static-x86_64: Process 284 attached [pid 284] set_robust_list(0x555566593660, 24) = 0 [pid 284] chdir("./0") = 0 [pid 284] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 284] setpgid(0, 0) = 0 [pid 284] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 284] write(3, "1000", 4) = 4 [pid 284] close(3) = 0 [pid 284] symlink("/dev/binderfs", "./binderfs") = 0 executing program [pid 284] write(1, "executing program\n", 18) = 18 [pid 284] memfd_create("syzkaller", 0) = 3 [pid 284] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f2ab59a0000 [ 22.581370][ T24] audit: type=1400 audit(1750495750.190:64): avc: denied { execmem } for pid=282 comm="syz-executor117" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 22.603271][ T24] audit: type=1400 audit(1750495750.210:65): avc: denied { read write } for pid=282 comm="syz-executor117" name="loop0" dev="devtmpfs" ino=115 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 22.628190][ T24] audit: type=1400 audit(1750495750.210:66): avc: denied { open } for pid=282 comm="syz-executor117" path="/dev/loop0" dev="devtmpfs" ino=115 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 22.652534][ T24] audit: type=1400 audit(1750495750.220:67): avc: denied { ioctl } for pid=282 comm="syz-executor117" path="/dev/loop0" dev="devtmpfs" ino=115 ioctlcmd=0x4c01 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 284] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 67108864) = 67108864 [pid 284] munmap(0x7f2ab59a0000, 138412032) = 0 [pid 284] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 284] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 284] close(3) = 0 [pid 284] close(4) = 0 [pid 284] mkdir("./file0", 0777) = 0 [ 22.921424][ T24] audit: type=1400 audit(1750495750.530:68): avc: denied { mounton } for pid=284 comm="syz-executor117" path="/root/syzkaller.aKV27Z/0/file0" dev="sda1" ino=2027 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 22.950695][ T284] F2FS-fs (loop0): Wrong CP boundary, start(512) end(198144) blocks(1024) [ 22.959238][ T284] F2FS-fs (loop0): Can't find valid F2FS filesystem in 2th superblock [pid 284] mount("/dev/loop0", "./file0", "f2fs", 0, "") = 0 [pid 284] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 284] chdir("./file0") = 0 [pid 284] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 284] ioctl(4, LOOP_CLR_FD) = 0 [ 22.968134][ T284] F2FS-fs (loop0): invalid crc value [ 22.975178][ T284] F2FS-fs (loop0): Found nat_bits in checkpoint [ 22.995347][ T284] F2FS-fs (loop0): Try to recover 2th superblock, ret: 0 [ 23.002472][ T284] F2FS-fs (loop0): Mounted with checkpoint version = 48b305e4 [pid 284] close(4) = 0 [pid 284] lstat("./file2", NULL) = -1 EFAULT (Bad address) [pid 284] rename("./file0", "./bus") = 0 [pid 284] clone(child_stack=NULL, flags=CLONE_FILES) = 290 [pid 284] exit_group(0) = ? [pid 284] +++ exited with 0 +++ ./strace-static-x86_64: Process 290 attached [pid 282] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=284, si_uid=0, si_status=0, si_utime=14, si_stime=19} --- [pid 282] restart_syscall(<... resuming interrupted clone ...>) = 0 [pid 282] umount2("./0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 282] openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 282] newfstatat(3, "", {st_mode=S_IFDIR|0700, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 282] getdents64(3, 0x5555665946f0 /* 4 entries */, 32768) = 112 [pid 282] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) [pid 282] newfstatat(AT_FDCWD, "./0/file0", {st_mode=S_IFDIR|0755, st_size=4096, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 282] umount2("./0/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EBUSY (Device or resource busy) [pid 282] openat(AT_FDCWD, "./0/file0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 4 [pid 282] newfstatat(4, "", {st_mode=S_IFDIR|0755, st_size=4096, ...}, AT_EMPTY_PATH) = 0 [pid 282] getdents64(4, 0x55556659c730 /* 7 entries */, 32768) = 200 [pid 282] umount2("./0/file0/file1", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 282] newfstatat(AT_FDCWD, "./0/file0/file1", {st_mode=S_IFREG|0755, st_size=10, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 282] unlink("./0/file0/file1") = 0 [pid 282] umount2("./0/file0/file2", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 282] newfstatat(AT_FDCWD, "./0/file0/file2", {st_mode=S_IFREG|0755, st_size=9000, ...}, AT_SYMLINK_NOFOLLOW) = 0 [pid 282] unlink("./0/file0/file2") = 0 [pid 282] umount2("./0/file0/file3", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) [pid 282] newfstatat(AT_FDCWD, "./0/file0/file3", {st_mode=S_IFREG|0755, st_size=9000, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 23.010201][ T24] audit: type=1400 audit(1750495750.620:69): avc: denied { mount } for pid=284 comm="syz-executor117" name="/" dev="loop0" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1 [ 23.035163][ T24] audit: type=1400 audit(1750495750.640:70): avc: denied { write } for pid=284 comm="syz-executor117" name="/" dev="loop0" ino=3 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 23.046188][ T282] F2FS-fs (loop0): dec_valid_node_count: inconsistent i_blocks, ino:7, iblocks:0 [ 23.057798][ T24] audit: type=1400 audit(1750495750.640:71): avc: denied { remove_name } for pid=284 comm="syz-executor117" name="file0" dev="loop0" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 23.068543][ T282] ------------[ cut here ]------------ [ 23.089544][ T24] audit: type=1400 audit(1750495750.640:72): avc: denied { rename } for pid=284 comm="syz-executor117" name="file0" dev="loop0" ino=4 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 23.094768][ T282] WARNING: CPU: 1 PID: 282 at fs/f2fs/inode.c:854 f2fs_evict_inode+0x1168/0x1420 [ 23.117689][ T24] audit: type=1400 audit(1750495750.640:73): avc: denied { add_name } for pid=284 comm="syz-executor117" name="bus" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:unlabeled_t tclass=dir permissive=1 [ 23.126933][ T282] Modules linked in: [ 23.151315][ T282] CPU: 1 PID: 282 Comm: syz-executor117 Not tainted 5.10.238-syzkaller-00282-gd76d4cd0623a #0 [ 23.161549][ T282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [pid 282] unlink("./0/file0/file3" [pid 290] exit(0) = ? [pid 290] +++ exited with 0 +++ [ 23.171704][ T282] RIP: 0010:f2fs_evict_inode+0x1168/0x1420 [ 23.177489][ T282] Code: 24 58 4c 8b 64 24 18 eb 0a e8 14 79 67 ff 4c 8b 7c 24 58 4c 8b 74 24 20 48 89 df e8 92 de 02 00 e9 b1 fc ff ff e8 f8 78 67 ff <0f> 0b 4c 89 f7 be 08 00 00 00 e8 49 6b a1 ff f0 41 80 0e 04 e9 89 [ 23.197259][ T282] RSP: 0018:ffffc90000b37ae0 EFLAGS: 00010293 [ 23.203499][ T282] RAX: ffffffff81fc1b18 RBX: ffff8881214319c0 RCX: ffff888121813b40 [ 23.211530][ T282] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 [ 23.219497][ T282] RBP: ffffc90000b37c50 R08: dffffc0000000000 R09: ffffed1024286395 [ 23.227501][ T282] R10: ffffed1024286395 R11: 1ffff11024286394 R12: ffff8881041d6000 [ 23.235528][ T282] R13: dffffc0000000000 R14: ffff8881041d6078 R15: 0000000000000002 [ 23.243563][ T282] FS: 0000555566593380(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 23.252543][ T282] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.259114][ T282] CR2: 00007ffd60711ff8 CR3: 0000000120f71000 CR4: 00000000003506a0 [ 23.267114][ T282] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.275110][ T282] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.283119][ T282] Call Trace: [ 23.286411][ T282] ? f2fs_write_inode+0x7f0/0x7f0 [ 23.291455][ T282] ? bit_waitqueue+0x30/0x30 [ 23.296040][ T282] ? inode_io_list_del_locked+0x1b3/0x210 [ 23.301976][ T282] ? _raw_spin_unlock+0x4d/0x70 [ 23.306847][ T282] ? f2fs_write_inode+0x7f0/0x7f0 [ 23.312158][ T282] evict+0x478/0x910 [ 23.316049][ T282] ? mode_strip_sgid+0x160/0x160 [ 23.321006][ T282] ? _raw_spin_lock+0x8e/0xe0 [ 23.325676][ T282] ? _raw_spin_trylock_bh+0x130/0x130 [ 23.331122][ T282] ? iput+0x291/0x7c0 [ 23.335112][ T282] ? __kasan_check_read+0x11/0x20 [ 23.340162][ T282] iput+0x638/0x7c0 [ 23.343968][ T282] do_unlinkat+0x33f/0x670 [ 23.348363][ T282] ? __check_object_size+0x2f4/0x3c0 [ 23.353655][ T282] ? fsnotify_link_count+0x90/0x90 [ 23.358758][ T282] ? getname_flags+0x206/0x500 [ 23.363527][ T282] __x64_sys_unlink+0x49/0x50 [ 23.368198][ T282] do_syscall_64+0x31/0x40 [ 23.372639][ T282] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 23.378529][ T282] RIP: 0033:0x7f2abdddeb97 [ 23.382964][ T282] Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 23.402584][ T282] RSP: 002b:00007ffd60712268 EFLAGS: 00000206 ORIG_RAX: 0000000000000057 [ 23.411002][ T282] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2abdddeb97 <... unlink resumed>) = 0 umount2("./0/file0/file.cold", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/file0/file.cold", {st_mode=S_IFREG|0755, st_size=100, ...}, AT_SYMLINK_NOFOLLOW) = 0 [ 23.418964][ T282] RDX: 00007ffd60712290 RSI: 00007ffd60712320 RDI: 00007ffd60712320 [ 23.426936][ T282] RBP: 00007ffd60712320 R08: 0000000000000000 R09: 0000000000000000 [ 23.434918][ T282] R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffd60713410 [ 23.443155][ T282] R13: 000055556659c700 R14: 0000000000000001 R15: 431bde82d7b634db [ 23.451130][ T282] ---[ end trace 345c9908b4abd98f ]--- [ 23.457477][ T282] ------------[ cut here ]------------ [ 23.463099][ T282] WARNING: CPU: 0 PID: 282 at fs/inode.c:304 drop_nlink+0xc5/0x110 [ 23.471341][ T282] Modules linked in: [ 23.475238][ T282] CPU: 0 PID: 282 Comm: syz-executor117 Tainted: G W 5.10.238-syzkaller-00282-gd76d4cd0623a #0 [ 23.486871][ T282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 23.496953][ T282] RIP: 0010:drop_nlink+0xc5/0x110 [ 23.502015][ T282] Code: 1b 48 8d bb b8 04 00 00 be 08 00 00 00 e8 a3 23 f2 ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 2b 31 b8 ff <0f> 0b eb 86 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 5e ff ff ff 4c [ 23.521633][ T282] RSP: 0018:ffffc90000b37b58 EFLAGS: 00010293 [ 23.527682][ T282] RAX: ffffffff81ab62e5 RBX: ffff88812149f3e0 RCX: ffff888121813b40 [ 23.535665][ T282] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 23.543647][ T282] RBP: ffffc90000b37b80 R08: dffffc0000000000 R09: ffffc90000b37b00 [ 23.551628][ T282] R10: fffff52000166f62 R11: 1ffff92000166f60 R12: dffffc0000000000 [ 23.559597][ T282] R13: 1ffff11024293e85 R14: ffff88812149f428 R15: 0000000000000000 [ 23.567578][ T282] FS: 0000555566593380(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 23.576516][ T282] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.583105][ T282] CR2: 00007f7d640cf9c0 CR3: 0000000120f71000 CR4: 00000000003506b0 [ 23.591087][ T282] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.599043][ T282] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.607019][ T282] Call Trace: [ 23.610312][ T282] f2fs_drop_nlink+0x148/0x3c0 [ 23.615071][ T282] ? f2fs_mark_inode_dirty_sync+0x110/0x140 [ 23.621018][ T282] f2fs_delete_entry+0x9d5/0xb30 [ 23.625955][ T282] ? _raw_spin_unlock+0x4d/0x70 [ 23.630819][ T282] f2fs_unlink+0x422/0x800 [ 23.635231][ T282] ? f2fs_link+0x8e0/0x8e0 [ 23.639629][ T282] ? __kasan_check_write+0x14/0x20 [ 23.644764][ T282] ? down_write+0xac/0x110 [ 23.649175][ T282] ? selinux_inode_unlink+0x22/0x30 [ 23.654383][ T282] ? security_inode_unlink+0xd0/0x120 [ 23.659750][ T282] vfs_unlink+0x321/0x540 [ 23.664090][ T282] do_unlinkat+0x2e9/0x670 [ 23.668503][ T282] ? __check_object_size+0x2f4/0x3c0 [ 23.673803][ T282] ? fsnotify_link_count+0x90/0x90 [ 23.678908][ T282] ? getname_flags+0x206/0x500 [ 23.683683][ T282] __x64_sys_unlink+0x49/0x50 [ 23.688373][ T282] do_syscall_64+0x31/0x40 [ 23.692799][ T282] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 23.698773][ T282] RIP: 0033:0x7f2abdddeb97 [ 23.703453][ T282] Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 23.723267][ T282] RSP: 002b:00007ffd60712268 EFLAGS: 00000206 ORIG_RAX: 0000000000000057 [ 23.731702][ T282] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2abdddeb97 [ 23.739675][ T282] RDX: 00007ffd60712290 RSI: 00007ffd60712320 RDI: 00007ffd60712320 [ 23.747662][ T282] RBP: 00007ffd60712320 R08: 0000000000000000 R09: 0000000000000000 [ 23.755649][ T282] R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffd60713410 [ 23.763642][ T282] R13: 000055556659c700 R14: 0000000000000001 R15: 431bde82d7b634db [ 23.771620][ T282] ---[ end trace 345c9908b4abd990 ]--- [ 23.777063][ T282] ================================================================== [ 23.785123][ T282] BUG: KASAN: use-after-free in __list_add_valid+0x6b/0xf0 [ 23.792310][ T282] Read of size 8 at addr ffff888121431d70 by task syz-executor117/282 [ 23.800430][ T282] [ 23.802742][ T282] CPU: 0 PID: 282 Comm: syz-executor117 Tainted: G W 5.10.238-syzkaller-00282-gd76d4cd0623a #0 [ 23.814438][ T282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 23.824485][ T282] Call Trace: [ 23.827769][ T282] __dump_stack+0x21/0x24 [ 23.832098][ T282] dump_stack_lvl+0x169/0x1d8 [ 23.836763][ T282] ? show_regs_print_info+0x18/0x18 [ 23.841959][ T282] ? thaw_kernel_threads+0x220/0x220 [ 23.847231][ T282] print_address_description+0x7f/0x2c0 [ 23.852762][ T282] ? __list_add_valid+0x6b/0xf0 [ 23.857607][ T282] kasan_report+0xe2/0x130 [ 23.862015][ T282] ? __list_add_valid+0x6b/0xf0 [ 23.866855][ T282] __asan_report_load8_noabort+0x14/0x20 [ 23.872483][ T282] __list_add_valid+0x6b/0xf0 [ 23.877146][ T282] f2fs_inode_dirtied+0x199/0x2a0 [ 23.882161][ T282] f2fs_mark_inode_dirty_sync+0xfa/0x140 [ 23.887780][ T282] f2fs_drop_nlink+0x155/0x3c0 [ 23.892707][ T282] ? f2fs_mark_inode_dirty_sync+0x110/0x140 [ 23.898587][ T282] f2fs_delete_entry+0x9d5/0xb30 [ 23.903510][ T282] ? _raw_spin_unlock+0x4d/0x70 [ 23.908365][ T282] f2fs_unlink+0x422/0x800 [ 23.912766][ T282] ? f2fs_link+0x8e0/0x8e0 [ 23.917168][ T282] ? __kasan_check_write+0x14/0x20 [ 23.922267][ T282] ? down_write+0xac/0x110 [ 23.926673][ T282] ? selinux_inode_unlink+0x22/0x30 [ 23.931856][ T282] ? security_inode_unlink+0xd0/0x120 [ 23.937219][ T282] vfs_unlink+0x321/0x540 [ 23.941534][ T282] do_unlinkat+0x2e9/0x670 [ 23.945941][ T282] ? __check_object_size+0x2f4/0x3c0 [ 23.951216][ T282] ? fsnotify_link_count+0x90/0x90 [ 23.956313][ T282] ? getname_flags+0x206/0x500 [ 23.961063][ T282] __x64_sys_unlink+0x49/0x50 [ 23.965724][ T282] do_syscall_64+0x31/0x40 [ 23.970127][ T282] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 23.976013][ T282] RIP: 0033:0x7f2abdddeb97 [ 23.980416][ T282] Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 24.000009][ T282] RSP: 002b:00007ffd60712268 EFLAGS: 00000206 ORIG_RAX: 0000000000000057 [ 24.008409][ T282] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2abdddeb97 [ 24.016370][ T282] RDX: 00007ffd60712290 RSI: 00007ffd60712320 RDI: 00007ffd60712320 [ 24.024331][ T282] RBP: 00007ffd60712320 R08: 0000000000000000 R09: 0000000000000000 [ 24.032291][ T282] R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffd60713410 [ 24.040249][ T282] R13: 000055556659c700 R14: 0000000000000001 R15: 431bde82d7b634db [ 24.048210][ T282] [ 24.050525][ T282] Allocated by task 284: [ 24.054754][ T282] __kasan_slab_alloc+0xbd/0xf0 [ 24.059630][ T282] slab_post_alloc_hook+0x5d/0x2f0 [ 24.064729][ T282] kmem_cache_alloc+0x165/0x2e0 [ 24.069582][ T282] f2fs_alloc_inode+0x26/0x410 [ 24.074340][ T282] iget_locked+0x146/0x7d0 [ 24.078740][ T282] f2fs_iget+0x55/0x4dc0 [ 24.082965][ T282] f2fs_lookup+0x3ee/0xce0 [ 24.087365][ T282] __lookup_slow+0x2aa/0x3e0 [ 24.091943][ T282] lookup_slow+0x57/0x70 [ 24.096176][ T282] walk_component+0x325/0x460 [ 24.100960][ T282] path_lookupat+0x180/0x490 [ 24.105536][ T282] filename_lookup+0x1d5/0x600 [ 24.110287][ T282] user_path_at_empty+0x43/0x50 [ 24.115122][ T282] vfs_statx+0xff/0x520 [ 24.119263][ T282] __se_sys_newlstat+0xb8/0x320 [ 24.124098][ T282] __x64_sys_newlstat+0x5b/0x70 [ 24.128933][ T282] do_syscall_64+0x31/0x40 [ 24.133335][ T282] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 24.139205][ T282] [ 24.141521][ T282] Freed by task 19: [ 24.145317][ T282] kasan_set_track+0x4a/0x70 [ 24.149903][ T282] kasan_set_free_info+0x23/0x40 [ 24.154823][ T282] ____kasan_slab_free+0x125/0x160 [ 24.159921][ T282] __kasan_slab_free+0x11/0x20 [ 24.164670][ T282] slab_free_freelist_hook+0xc5/0x190 [ 24.170026][ T282] kmem_cache_free+0x100/0x2d0 [ 24.174775][ T282] f2fs_free_inode+0x24/0x30 [ 24.179351][ T282] i_callback+0x4c/0x70 [ 24.183492][ T282] rcu_do_batch+0x4df/0xa80 [ 24.187983][ T282] rcu_core+0x55f/0xd60 [ 24.192129][ T282] rcu_core_si+0x9/0x10 [ 24.196281][ T282] __do_softirq+0x255/0x563 [ 24.200762][ T282] [ 24.203081][ T282] Last potentially related work creation: [ 24.208785][ T282] kasan_save_stack+0x3a/0x60 [ 24.213621][ T282] __kasan_record_aux_stack+0xd2/0x100 [ 24.219064][ T282] kasan_record_aux_stack_noalloc+0xb/0x10 [ 24.224854][ T282] call_rcu+0x105/0x1040 [ 24.229081][ T282] evict+0x857/0x910 [ 24.232959][ T282] iput+0x638/0x7c0 [ 24.236754][ T282] do_unlinkat+0x33f/0x670 [ 24.241157][ T282] __x64_sys_unlink+0x49/0x50 [ 24.245820][ T282] do_syscall_64+0x31/0x40 [ 24.250226][ T282] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 24.256095][ T282] [ 24.258410][ T282] The buggy address belongs to the object at ffff8881214319c0 [ 24.258410][ T282] which belongs to the cache f2fs_inode_cache of size 1520 [ 24.272975][ T282] The buggy address is located 944 bytes inside of [ 24.272975][ T282] 1520-byte region [ffff8881214319c0, ffff888121431fb0) [ 24.286311][ T282] The buggy address belongs to the page: [ 24.292036][ T282] page:ffffea0004850c00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x121430 [ 24.302257][ T282] head:ffffea0004850c00 order:3 compound_mapcount:0 compound_pincount:0 [ 24.310567][ T282] flags: 0x4000000000010200(slab|head) [ 24.316023][ T282] raw: 4000000000010200 dead000000000100 dead000000000122 ffff8881029d3680 [ 24.324605][ T282] raw: 0000000000000000 0000000080130013 00000001ffffffff 0000000000000000 [ 24.333187][ T282] page dumped because: kasan: bad access detected [ 24.339584][ T282] page_owner tracks the page as allocated [ 24.345292][ T282] page last allocated via order 3, migratetype Reclaimable, gfp_mask 0xd2050(__GFP_IO|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_RECLAIMABLE), pid 284, ts 22967847224, free_ts 0 [ 24.364454][ T282] prep_new_page+0x179/0x180 [ 24.369032][ T282] get_page_from_freelist+0x2235/0x23d0 [ 24.374594][ T282] __alloc_pages_nodemask+0x268/0x5f0 [ 24.379949][ T282] new_slab+0x84/0x3f0 [ 24.384007][ T282] ___slab_alloc+0x2a6/0x450 [ 24.388584][ T282] __slab_alloc+0x63/0xa0 [ 24.392915][ T282] kmem_cache_alloc+0x1af/0x2e0 [ 24.397755][ T282] f2fs_alloc_inode+0x26/0x410 [ 24.402506][ T282] iget_locked+0x146/0x7d0 [ 24.406912][ T282] f2fs_iget+0x55/0x4dc0 [ 24.411149][ T282] f2fs_fill_super+0x39f0/0x6c70 [ 24.416071][ T282] mount_bdev+0x28b/0x3a0 [ 24.420388][ T282] f2fs_mount+0x34/0x40 [ 24.424534][ T282] legacy_get_tree+0xed/0x190 [ 24.429198][ T282] vfs_get_tree+0x89/0x260 [ 24.433601][ T282] do_new_mount+0x25a/0xa20 [ 24.438086][ T282] page_owner free stack trace missing [ 24.443441][ T282] [ 24.445770][ T282] Memory state around the buggy address: [ 24.451427][ T282] ffff888121431c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.459486][ T282] ffff888121431c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.467541][ T282] >ffff888121431d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb unlink("./0/file0/file.cold") = 0 umount2("./0/file0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) newfstatat(AT_FDCWD, "./0/file0/bus", {st_mode=S_IFDIR|0755, st_size=3488, ...}, AT_SYMLINK_NOFOLLOW) = 0 umount2("./0/file0/bus", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0/file0/bus", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 5 newfstatat(5, "", {st_mode=S_IFDIR|0755, st_size=3488, ...}, AT_EMPTY_PATH) = 0 getdents64(5, 0x5555665a4770 /* 4 entries */, 32768) = 112 umount2("./0/file0/bus/file0", MNT_FORCE|UMOUNT_NOFOLLOW) = -1 ENOENT (No such file or directory) newfstatat(AT_FDCWD, "./0/file0/bus/file0", 0x7ffd607111a0, AT_SYMLINK_NOFOLLOW) = -1 ENOENT (No such file or directory) exit_group(1) = ? +++ exited with 1 +++ [ 24.475587][ T282] ^ [ 24.483291][ T282] ffff888121431d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.491338][ T282] ffff888121431e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 24.499384][ T282] ================================================================== [ 24.507617][ T282] Disabling lock debugging due to kernel taint