EXT4-fs (loop2): #clusters per group too big: 8447
======================================================
WARNING: possible circular locking dependency detected
4.19.211-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.0/1117 is trying to acquire lock:
00000000e10eb6bf (&ovl_i_mutex_key[depth]#2){+.+.}, at: inode_lock include/linux/fs.h:748 [inline]
00000000e10eb6bf (&ovl_i_mutex_key[depth]#2){+.+.}, at: process_measurement+0x926/0x1440 security/integrity/ima/ima_main.c:205
but task is already holding lock:
00000000ee78f487 (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds fs/exec.c:1419 [inline]
00000000ee78f487 (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file+0x38c/0x2360 fs/exec.c:1762
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (&sig->cred_guard_mutex){+.+.}:
do_io_accounting fs/proc/base.c:2750 [inline]
proc_tgid_io_accounting+0x1cf/0x7f0 fs/proc/base.c:2799
proc_single_show+0xeb/0x170 fs/proc/base.c:755
seq_read+0x4e0/0x11c0 fs/seq_file.c:232
__vfs_read+0xf7/0x750 fs/read_write.c:416
vfs_read+0x194/0x3c0 fs/read_write.c:452
ksys_read+0x12b/0x2a0 fs/read_write.c:579
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
-> #2 (&p->lock){+.+.}:
seq_read+0x6b/0x11c0 fs/seq_file.c:164
proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231
do_loop_readv_writev fs/read_write.c:701 [inline]
do_loop_readv_writev fs/read_write.c:688 [inline]
do_iter_read+0x471/0x630 fs/read_write.c:925
vfs_readv+0xe5/0x150 fs/read_write.c:987
kernel_readv fs/splice.c:362 [inline]
default_file_splice_read+0x457/0xa00 fs/splice.c:417
do_splice_to+0x10e/0x160 fs/splice.c:881
splice_direct_to_actor+0x2b9/0x8d0 fs/splice.c:959
do_splice_direct+0x1a7/0x270 fs/splice.c:1068
do_sendfile+0x550/0xc30 fs/read_write.c:1447
__do_sys_sendfile64 fs/read_write.c:1508 [inline]
__se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
-> #1 (sb_writers#3){.+.+}:
sb_start_write include/linux/fs.h:1579 [inline]
mnt_want_write+0x3a/0xb0 fs/namespace.c:360
ovl_xattr_set+0x53/0x600 fs/overlayfs/inode.c:338
__vfs_setxattr+0x10e/0x170 fs/xattr.c:149
__vfs_setxattr_noperm+0x11a/0x420 fs/xattr.c:180
__vfs_setxattr_locked+0x176/0x250 fs/xattr.c:238
vfs_setxattr+0xe5/0x270 fs/xattr.c:255
setxattr+0x23d/0x330 fs/xattr.c:520
path_setxattr+0x170/0x190 fs/xattr.c:539
__do_sys_setxattr fs/xattr.c:554 [inline]
__se_sys_setxattr fs/xattr.c:550 [inline]
__x64_sys_setxattr+0xc0/0x160 fs/xattr.c:550
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
-> #0 (&ovl_i_mutex_key[depth]#2){+.+.}:
down_write+0x34/0x90 kernel/locking/rwsem.c:70
inode_lock include/linux/fs.h:748 [inline]
process_measurement+0x926/0x1440 security/integrity/ima/ima_main.c:205
ima_file_check+0xb9/0x100 security/integrity/ima/ima_main.c:391
do_last fs/namei.c:3425 [inline]
path_openat+0x7e4/0x2df0 fs/namei.c:3537
do_filp_open+0x18c/0x3f0 fs/namei.c:3567
do_open_execat+0x11d/0x5b0 fs/exec.c:853
__do_execve_file+0x1a8b/0x2360 fs/exec.c:1770
do_execveat_common fs/exec.c:1879 [inline]
do_execve+0x35/0x50 fs/exec.c:1896
__do_sys_execve fs/exec.c:1977 [inline]
__se_sys_execve fs/exec.c:1972 [inline]
__x64_sys_execve+0x7c/0xa0 fs/exec.c:1972
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
other info that might help us debug this:
Chain exists of:
&ovl_i_mutex_key[depth]#2 --> &p->lock --> &sig->cred_guard_mutex
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&sig->cred_guard_mutex);
lock(&p->lock);
lock(&sig->cred_guard_mutex);
lock(&ovl_i_mutex_key[depth]#2);
*** DEADLOCK ***
1 lock held by syz-executor.0/1117:
#0: 00000000ee78f487 (&sig->cred_guard_mutex){+.+.}, at: prepare_bprm_creds fs/exec.c:1419 [inline]
#0: 00000000ee78f487 (&sig->cred_guard_mutex){+.+.}, at: __do_execve_file+0x38c/0x2360 fs/exec.c:1762
stack backtrace:
CPU: 1 PID: 1117 Comm: syz-executor.0 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1222
check_prev_add kernel/locking/lockdep.c:1866 [inline]
check_prevs_add kernel/locking/lockdep.c:1979 [inline]
validate_chain kernel/locking/lockdep.c:2420 [inline]
__lock_acquire+0x30c9/0x3ff0 kernel/locking/lockdep.c:3416
lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908
down_write+0x34/0x90 kernel/locking/rwsem.c:70
inode_lock include/linux/fs.h:748 [inline]
process_measurement+0x926/0x1440 security/integrity/ima/ima_main.c:205
ima_file_check+0xb9/0x100 security/integrity/ima/ima_main.c:391
do_last fs/namei.c:3425 [inline]
path_openat+0x7e4/0x2df0 fs/namei.c:3537
do_filp_open+0x18c/0x3f0 fs/namei.c:3567
do_open_execat+0x11d/0x5b0 fs/exec.c:853
__do_execve_file+0x1a8b/0x2360 fs/exec.c:1770
do_execveat_common fs/exec.c:1879 [inline]
do_execve+0x35/0x50 fs/exec.c:1896
__do_sys_execve fs/exec.c:1977 [inline]
__se_sys_execve fs/exec.c:1972 [inline]
__x64_sys_execve+0x7c/0xa0 fs/exec.c:1972
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f2628df80e9
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f262772b168 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 00007f2628f0b100 RCX: 00007f2628df80e9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180
RBP: 00007f2628e5208d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd433dcfff R14: 00007f262772b300 R15: 0000000000022000
Invalid argument reading file caps for ./file0
EXT4-fs (loop5): bad geometry: first data block 1073741824 is beyond end of filesystem (512)
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
EXT4-fs (loop5): bad geometry: first data block 1207959552 is beyond end of filesystem (512)
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
EXT4-fs (loop2): #clusters per group too big: 8447
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
Invalid argument reading file caps for ./file0
EXT4-fs (loop5): bad geometry: first data block 1224736768 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 24576
EXT4-fs (loop5): bad geometry: first data block 1241513984 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 2097152
EXT4-fs (loop2): blocks per group (131072) and clusters per group (2560) inconsistent
EXT4-fs (loop5): bad geometry: first data block 1275068416 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8194
EXT4-fs (loop5): bad geometry: first data block 1375731712 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8195
EXT4-fs (loop5): bad geometry: first data block 1392640000 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8196
EXT4-fs (loop5): bad geometry: first data block 1409417216 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8197
EXT4-fs (loop5): bad geometry: first data block 1442840576 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8198
EXT4-fs (loop5): bad geometry: first data block 1442906112 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8199
EXT4-fs (loop5): bad geometry: first data block 1476395008 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8200
EXT4-fs (loop5): bad geometry: first data block 1509949440 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8201
EXT4-fs (loop5): bad geometry: first data block 1577058304 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8202
EXT4-fs (loop5): bad geometry: first data block 1610612736 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8227
EXT4-fs (loop5): bad geometry: first data block 1644298240 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8237
EXT4-fs (loop5): bad geometry: first data block 1744830464 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8264
EXT4-fs (loop2): #clusters per group too big: 8268
EXT4-fs (loop5): bad geometry: first data block 1811939328 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8288
EXT4-fs (loop5): bad geometry: first data block 1946157056 is beyond end of filesystem (512)
EXT4-fs (loop5): bad geometry: first data block 2030239744 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8296
EXT4-fs (loop5): bad geometry: first data block 2046820352 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8300
EXT4-fs (loop5): bad geometry: first data block 2080571392 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8308
EXT4-fs (loop5): bad geometry: first data block 2248212480 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8314
EXT4-fs (loop5): bad geometry: first data block 2287992832 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 8416
EXT4-fs (loop5): bad geometry: first data block 2298478592 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 9472
EXT4-fs (loop5): bad geometry: first data block 2365587455 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 12032
EXT4-fs (loop2): #clusters per group too big: 15616
EXT4-fs (loop5): bad geometry: first data block 2382430208 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 24576
EXT4-fs (loop5): bad geometry: first data block 2399272960 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 26880
EXT4-fs (loop2): blocks per group (131072) and clusters per group (1024) inconsistent
EXT4-fs (loop5): bad geometry: first data block 2885091584 is beyond end of filesystem (512)
EXT4-fs (loop5): bad geometry: first data block 2901868800 is beyond end of filesystem (512)
EXT4-fs (loop2): blocks per group (131072) and clusters per group (2560) inconsistent
EXT4-fs (loop5): bad geometry: first data block 2918646016 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 9472
EXT4-fs (loop2): #clusters per group too big: 12032
EXT4-fs (loop5): bad geometry: first data block 2935423232 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 15616
EXT4-fs (loop2): #clusters per group too big: 24576
EXT4-fs (loop5): bad geometry: first data block 2952200448 is beyond end of filesystem (512)
EXT4-fs (loop5): bad geometry: first data block 2968977664 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 26880
EXT4-fs (loop5): bad geometry: first data block 2985754880 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 2097152
EXT4-fs (loop2): #clusters per group too big: 139264
EXT4-fs (loop5): bad geometry: first data block 3002532096 is beyond end of filesystem (512)
EXT4-fs (loop5): bad geometry: first data block 3019309312 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 204800
EXT4-fs (loop2): #clusters per group too big: 270336
EXT4-fs (loop5): bad geometry: first data block 3036086528 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 335872
EXT4-fs (loop5): bad geometry: first data block 3052863744 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 401408
EXT4-fs (loop5): bad geometry: first data block 3069640960 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 466944
EXT4-fs (loop5): bad geometry: first data block 3086418176 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 532480
EXT4-fs (loop5): bad geometry: first data block 3103195392 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 598016
EXT4-fs (loop2): #clusters per group too big: 663552
EXT4-fs (loop5): bad geometry: first data block 3119972608 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 2301952
EXT4-fs (loop5): bad geometry: first data block 3136749824 is beyond end of filesystem (512)
EXT4-fs (loop2): #clusters per group too big: 2957312
EXT4-fs (loop2): #clusters per group too big: 4726784