overlayfs: upper fs does not support RENAME_WHITEOUT. ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Tainted: G L ------------------------------------------------------ syz.3.94/7205 is trying to acquire lock: ffff0000f8183480 (&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] ffff0000f8183480 (&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}, at: ocfs2_reserve_local_alloc_bits+0x104/0x26a8 fs/ocfs2/localalloc.c:636 but task is already holding lock: ffff0000fd4bb1b8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_xattr_set+0x330/0xe9c fs/ocfs2/xattr.c:3613 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&oi->ip_xattr_sem){++++}-{4:4}: down_read+0x58/0x308 kernel/locking/rwsem.c:1537 ocfs2_init_acl+0x258/0x63c fs/ocfs2/acl.c:367 ocfs2_mknod+0x1008/0x1cf0 fs/ocfs2/namei.c:414 ocfs2_create+0x178/0x474 fs/ocfs2/namei.c:677 lookup_open fs/namei.c:4440 [inline] open_last_lookups fs/namei.c:4540 [inline] path_openat+0x143c/0x3114 fs/namei.c:4784 do_filp_open+0x18c/0x36c fs/namei.c:4814 do_sys_openat2+0x11c/0x1f0 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_openat fs/open.c:1452 [inline] __se_sys_openat fs/open.c:1447 [inline] __arm64_sys_openat+0x120/0x158 fs/open.c:1447 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 -> #2 (&journal->j_trans_barrier){.+.+}-{4:4}: down_read+0x58/0x308 kernel/locking/rwsem.c:1537 ocfs2_start_trans+0x35c/0x6b0 fs/ocfs2/journal.c:372 ocfs2_modify_bh+0xe4/0x43c fs/ocfs2/quota_local.c:101 ocfs2_local_read_info+0x104c/0x1364 fs/ocfs2/quota_local.c:767 dquot_load_quota_sb+0x6bc/0xa90 fs/quota/dquot.c:2462 dquot_load_quota_inode+0x274/0x4e4 fs/quota/dquot.c:2499 ocfs2_enable_quotas+0x17c/0x3b4 fs/ocfs2/super.c:930 ocfs2_fill_super+0x3fe4/0x532c fs/ocfs2/super.c:1140 get_tree_bdev_flags+0x360/0x414 fs/super.c:1691 get_tree_bdev+0x2c/0x3c fs/super.c:1714 ocfs2_get_tree+0x28/0x38 fs/ocfs2/super.c:1184 vfs_get_tree+0x90/0x28c fs/super.c:1751 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3636 [inline] do_new_mount+0x284/0x944 fs/namespace.c:3712 path_mount+0x5b4/0xdfc fs/namespace.c:4022 do_mount fs/namespace.c:4035 [inline] __do_sys_mount fs/namespace.c:4224 [inline] __se_sys_mount fs/namespace.c:4201 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4201 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 -> #1 (sb_internal#4){.+.+}-{0:0}: percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read_freezable include/linux/percpu-rwsem.h:83 [inline] __sb_start_write include/linux/fs/super.h:19 [inline] sb_start_intwrite include/linux/fs/super.h:177 [inline] ocfs2_start_trans+0x1f4/0x6b0 fs/ocfs2/journal.c:370 ocfs2_mknod+0xc30/0x1cf0 fs/ocfs2/namei.c:365 ocfs2_create+0x178/0x474 fs/ocfs2/namei.c:677 lookup_open fs/namei.c:4440 [inline] open_last_lookups fs/namei.c:4540 [inline] path_openat+0x143c/0x3114 fs/namei.c:4784 do_filp_open+0x18c/0x36c fs/namei.c:4814 do_sys_openat2+0x11c/0x1f0 fs/open.c:1430 do_sys_open fs/open.c:1436 [inline] __do_sys_openat fs/open.c:1452 [inline] __se_sys_openat fs/open.c:1447 [inline] __arm64_sys_openat+0x120/0x158 fs/open.c:1447 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 -> #0 (&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]){+.+.}-{4:4}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x1774/0x30a4 kernel/locking/lockdep.c:5237 lock_acquire+0x140/0x2e0 kernel/locking/lockdep.c:5868 down_write+0x50/0xc0 kernel/locking/rwsem.c:1590 inode_lock include/linux/fs.h:1027 [inline] ocfs2_reserve_local_alloc_bits+0x104/0x26a8 fs/ocfs2/localalloc.c:636 ocfs2_reserve_clusters_with_limit+0x198/0x9e0 fs/ocfs2/suballoc.c:1169 ocfs2_reserve_clusters+0x3c/0x50 fs/ocfs2/suballoc.c:1230 ocfs2_init_xattr_set_ctxt+0x364/0x778 fs/ocfs2/xattr.c:3316 ocfs2_xattr_set+0x920/0xe9c fs/ocfs2/xattr.c:3664 ocfs2_xattr_trusted_set+0x4c/0x64 fs/ocfs2/xattr.c:7366 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:200 __vfs_setxattr_noperm+0x120/0x5c4 fs/xattr.c:234 __vfs_setxattr_locked+0x1e8/0x214 fs/xattr.c:295 vfs_setxattr+0x158/0x2a8 fs/xattr.c:321 ovl_do_setxattr fs/overlayfs/overlayfs.h:317 [inline] ovl_setxattr fs/overlayfs/overlayfs.h:329 [inline] ovl_make_workdir fs/overlayfs/super.c:728 [inline] ovl_get_workdir fs/overlayfs/super.c:840 [inline] ovl_fill_super_creds fs/overlayfs/super.c:1453 [inline] ovl_fill_super+0x3d74/0x4cdc fs/overlayfs/super.c:1567 vfs_get_super fs/super.c:1324 [inline] get_tree_nodev+0xb4/0x144 fs/super.c:1343 ovl_get_tree+0x28/0x38 fs/overlayfs/params.c:708 vfs_get_tree+0x90/0x28c fs/super.c:1751 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3636 [inline] do_new_mount+0x284/0x944 fs/namespace.c:3712 path_mount+0x5b4/0xdfc fs/namespace.c:4022 do_mount fs/namespace.c:4035 [inline] __do_sys_mount fs/namespace.c:4224 [inline] __se_sys_mount fs/namespace.c:4201 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4201 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 other info that might help us debug this: Chain exists of: &ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE] --> &journal->j_trans_barrier --> &oi->ip_xattr_sem Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&oi->ip_xattr_sem); lock(&journal->j_trans_barrier); lock(&oi->ip_xattr_sem); lock(&ocfs2_sysfile_lock_key[LOCAL_ALLOC_SYSTEM_INODE]); *** DEADLOCK *** 4 locks held by syz.3.94/7205: #0: ffff0000c9e6e0e0 (&type->s_umount_key#48/1){+.+.}-{4:4}, at: alloc_super+0x210/0x908 fs/super.c:344 #1: ffff0000fad9c420 (sb_writers#20){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c fs/namespace.c:499 #2: ffff0000fd4bb480 (&sb->s_type->i_mutex_key#31){++++}-{4:4}, at: inode_lock include/linux/fs.h:1027 [inline] #2: ffff0000fd4bb480 (&sb->s_type->i_mutex_key#31){++++}-{4:4}, at: vfs_setxattr+0x138/0x2a8 fs/xattr.c:320 #3: ffff0000fd4bb1b8 (&oi->ip_xattr_sem){++++}-{4:4}, at: ocfs2_xattr_set+0x330/0xe9c fs/ocfs2/xattr.c:3613 stack backtrace: CPU: 0 UID: 0 PID: 7205 Comm: syz.3.94 Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C) __dump_stack+0x30/0x40 lib/dump_stack.c:94 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 print_circular_bug+0x324/0x32c kernel/locking/lockdep.c:2043 check_noncircular+0x154/0x174 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x1774/0x30a4 kernel/locking/lockdep.c:5237 lock_acquire+0x140/0x2e0 kernel/locking/lockdep.c:5868 down_write+0x50/0xc0 kernel/locking/rwsem.c:1590 inode_lock include/linux/fs.h:1027 [inline] ocfs2_reserve_local_alloc_bits+0x104/0x26a8 fs/ocfs2/localalloc.c:636 ocfs2_reserve_clusters_with_limit+0x198/0x9e0 fs/ocfs2/suballoc.c:1169 ocfs2_reserve_clusters+0x3c/0x50 fs/ocfs2/suballoc.c:1230 ocfs2_init_xattr_set_ctxt+0x364/0x778 fs/ocfs2/xattr.c:3316 ocfs2_xattr_set+0x920/0xe9c fs/ocfs2/xattr.c:3664 ocfs2_xattr_trusted_set+0x4c/0x64 fs/ocfs2/xattr.c:7366 __vfs_setxattr+0x3d8/0x400 fs/xattr.c:200 __vfs_setxattr_noperm+0x120/0x5c4 fs/xattr.c:234 __vfs_setxattr_locked+0x1e8/0x214 fs/xattr.c:295 vfs_setxattr+0x158/0x2a8 fs/xattr.c:321 ovl_do_setxattr fs/overlayfs/overlayfs.h:317 [inline] ovl_setxattr fs/overlayfs/overlayfs.h:329 [inline] ovl_make_workdir fs/overlayfs/super.c:728 [inline] ovl_get_workdir fs/overlayfs/super.c:840 [inline] ovl_fill_super_creds fs/overlayfs/super.c:1453 [inline] ovl_fill_super+0x3d74/0x4cdc fs/overlayfs/super.c:1567 vfs_get_super fs/super.c:1324 [inline] get_tree_nodev+0xb4/0x144 fs/super.c:1343 ovl_get_tree+0x28/0x38 fs/overlayfs/params.c:708 vfs_get_tree+0x90/0x28c fs/super.c:1751 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3636 [inline] do_new_mount+0x284/0x944 fs/namespace.c:3712 path_mount+0x5b4/0xdfc fs/namespace.c:4022 do_mount fs/namespace.c:4035 [inline] __do_sys_mount fs/namespace.c:4224 [inline] __se_sys_mount fs/namespace.c:4201 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4201 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 ------------[ cut here ]------------ UBSAN: array-index-out-of-bounds in fs/ocfs2/xattr.c:1985:3 index 2 is out of range for type 'struct ocfs2_xattr_entry[] __counted_by(xh_count)' (aka 'struct ocfs2_xattr_entry[]') CPU: 1 UID: 0 PID: 7205 Comm: syz.3.94 Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 Call trace: show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C) __dump_stack+0x30/0x40 lib/dump_stack.c:94 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120 dump_stack+0x1c/0x28 lib/dump_stack.c:129 ubsan_epilogue+0x14/0x48 lib/ubsan.c:233 __ubsan_handle_out_of_bounds+0xd0/0xfc lib/ubsan.c:455 ocfs2_xa_remove_entry+0x314/0x384 fs/ocfs2/xattr.c:1985 ocfs2_xa_remove fs/ocfs2/xattr.c:2073 [inline] ocfs2_xa_set+0x938/0x23c0 fs/ocfs2/xattr.c:2277 ocfs2_xattr_block_set+0x328/0x2a88 fs/ocfs2/xattr.c:3015 __ocfs2_xattr_set_handle+0x200/0xc28 fs/ocfs2/xattr.c:-1 ocfs2_xattr_set+0xb38/0xe9c fs/ocfs2/xattr.c:3680 ocfs2_xattr_trusted_set+0x4c/0x64 fs/ocfs2/xattr.c:7366 __vfs_removexattr+0x3bc/0x3e4 fs/xattr.c:518 __vfs_removexattr_locked+0x1cc/0x204 fs/xattr.c:553 vfs_removexattr+0x80/0x18c fs/xattr.c:575 ovl_do_removexattr fs/overlayfs/overlayfs.h:335 [inline] ovl_removexattr fs/overlayfs/overlayfs.h:343 [inline] ovl_make_workdir fs/overlayfs/super.c:760 [inline] ovl_get_workdir fs/overlayfs/super.c:840 [inline] ovl_fill_super_creds fs/overlayfs/super.c:1453 [inline] ovl_fill_super+0x3e40/0x4cdc fs/overlayfs/super.c:1567 vfs_get_super fs/super.c:1324 [inline] get_tree_nodev+0xb4/0x144 fs/super.c:1343 ovl_get_tree+0x28/0x38 fs/overlayfs/params.c:708 v vfs_get_tree+0x90/0x28c fs/super.c:1751 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3636 [inline] do_new_mount+0x284/0x944 fs/namespace.c:3712 path_mount+0x5b4/0xdfc fs/namespace.c:4022 do_mount fs/namespace.c:4035 [inline] __do_sys_mount fs/namespace.c:4224 [inline] __se_sys_mount fs/namespace.c:4201 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4201 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 ---[ end trace ]--- ------------[ cut here ]------------ memset: detected buffer overflow: 16 byte write of buffer size 0 WARNING: lib/string_helpers.c:1036 at __fortify_report+0xa4/0xc0 lib/string_helpers.c:1035, CPU#0: syz.3.94/7205 Modules linked in: CPU: 0 UID: 0 PID: 7205 Comm: syz.3.94 Tainted: G L syzkaller #0 PREEMPT Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : __fortify_report+0xa4/0xc0 lib/string_helpers.c:1035 lr : __fortify_report+0xa4/0xc0 lib/string_helpers.c:1035 sp : ffff8000a1656660 x29: ffff8000a1656660 x28: 1fffe00021288706 x27: dfff800000000000 x26: ffff000109443840 x25: 0000000000000000 x24: 0000000000000001 x23: 000000000000000f x22: ffff80008b5a2058 x21: 0000000000000001 x20: 0000000000000010 x19: 0000000000000000 x18: 1fffe00033781890 x17: ffff80008f86e000 x16: ffff800082e5c71c x15: 0000000000000001 x14: 1fffe0003377d0fa x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000080000 x10: 000000000006e734 x9 : e57ea6391f60a100 x8 : e57ea6391f60a100 x7 : 0000000000000001 x6 : ffff800080575c38 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000807f0908 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: __fortify_report+0xa4/0xc0 lib/string_helpers.c:1035 (P) __fortify_panic+0x10/0x14 lib/string_helpers.c:1042 fortify_memset_chk include/linux/fortify-string.h:497 [inline] ocfs2_xa_remove_entry+0x34c/0x384 fs/ocfs2/xattr.c:1987 ocfs2_xa_remove fs/ocfs2/xattr.c:2073 [inline] ocfs2_xa_set+0x938/0x23c0 fs/ocfs2/xattr.c:2277 ocfs2_xattr_block_set+0x328/0x2a88 fs/ocfs2/xattr.c:3015 __ocfs2_xattr_set_handle+0x200/0xc28 fs/ocfs2/xattr.c:-1 ocfs2_xattr_set+0xb38/0xe9c fs/ocfs2/xattr.c:3680 ocfs2_xattr_trusted_set+0x4c/0x64 fs/ocfs2/xattr.c:7366 __vfs_removexattr+0x3bc/0x3e4 fs/xattr.c:518 __vfs_removexattr_locked+0x1cc/0x204 fs/xattr.c:553 vfs_removexattr+0x80/0x18c fs/xattr.c:575 ovl_do_removexattr fs/overlayfs/overlayfs.h:335 [inline] ovl_removexattr fs/overlayfs/overlayfs.h:343 [inline] ovl_make_workdir fs/overlayfs/super.c:760 [inline] ovl_get_workdir fs/overlayfs/super.c:840 [inline] ovl_fill_super_creds fs/overlayfs/super.c:1453 [inline] ovl_fill_super+0x3e40/0x4cdc fs/overlayfs/super.c:1567 vfs_get_super fs/super.c:1324 [inline] get_tree_nodev+0xb4/0x144 fs/super.c:1343 ovl_get_tree+0x28/0x38 fs/overlayfs/params.c:708 vfs_get_tree+0x90/0x28c fs/super.c:1751 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3636 [inline] do_new_mount+0x284/0x944 fs/namespace.c:3712 path_mount+0x5b4/0xdfc fs/namespace.c:4022 do_mount fs/namespace.c:4035 [inline] __do_sys_mount fs/namespace.c:4224 [inline] __se_sys_mount fs/namespace.c:4201 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4201 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 53771 hardirqs last enabled at (53771): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (53771): [] _raw_spin_unlock_irqrestore+0x38/0x98 kernel/locking/spinlock.c:194 hardirqs last disabled at (53770): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (53770): [] _raw_spin_lock_irqsave+0x2c/0x7c kernel/locking/spinlock.c:162 softirqs last enabled at (53750): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (53750): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650 softirqs last disabled at (52749): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ kernel BUG at lib/string_helpers.c:1043! Internal error: Oops - BUG: 00000000f2000800 [#1] SMP Modules linked in: CPU: 1 UID: 0 PID: 7205 Comm: syz.3.94 Tainted: G W L syzkaller #0 PREEMPT Tainted: [W]=WARN, [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : __fortify_panic+0x10/0x14 lib/string_helpers.c:1042 lr : __fortify_panic+0x10/0x14 lib/string_helpers.c:1042 sp : ffff8000a16566a0 x29: ffff8000a16566a0 x28: 1fffe00021288706 x27: dfff800000000000 x26: ffff000109443840 x25: 0000000000000000 x24: 0000000000000001 x23: ffff000109443850 x22: 0000000000000001 x21: 0000000000000001 x20: 0000000000000001 x19: ffff000109443830 x18: 1fffe00033781890 x17: ffff80008f86e000 x16: ffff800082e5c71c x15: 0000000000000001 x14: 1fffe0003377d0fa x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000080000 x10: 000000000006e734 x9 : e57ea6391f60a100 x8 : e57ea6391f60a100 x7 : 0000000000000001 x6 : ffff800080575c38 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000807f0908 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: __fortify_panic+0x10/0x14 lib/string_helpers.c:1042 (P) fortify_memset_chk include/linux/fortify-string.h:497 [inline] ocfs2_xa_remove_entry+0x34c/0x384 fs/ocfs2/xattr.c:1987 ocfs2_xa_remove fs/ocfs2/xattr.c:2073 [inline] ocfs2_xa_set+0x938/0x23c0 fs/ocfs2/xattr.c:2277 ocfs2_xattr_block_set+0x328/0x2a88 fs/ocfs2/xattr.c:3015 __ocfs2_xattr_set_handle+0x200/0xc28 fs/ocfs2/xattr.c:-1 ocfs2_xattr_set+0xb38/0xe9c fs/ocfs2/xattr.c:3680 ocfs2_xattr_trusted_set+0x4c/0x64 fs/ocfs2/xattr.c:7366 __vfs_removexattr+0x3bc/0x3e4 fs/xattr.c:518 __vfs_removexattr_locked+0x1cc/0x204 fs/xattr.c:553 vfs_removexattr+0x80/0x18c fs/xattr.c:575 ovl_do_removexattr fs/overlayfs/overlayfs.h:335 [inline] ovl_removexattr fs/overlayfs/overlayfs.h:343 [inline] ovl_make_workdir fs/overlayfs/super.c:760 [inline] ovl_get_workdir fs/overlayfs/super.c:840 [inline] ovl_fill_super_creds fs/overlayfs/super.c:1453 [inline] ovl_fill_super+0x3e40/0x4cdc fs/overlayfs/super.c:1567 vfs_get_super fs/super.c:1324 [inline] get_tree_nodev+0xb4/0x144 fs/super.c:1343 ovl_get_tree+0x28/0x38 fs/overlayfs/params.c:708 vfs_get_tree+0x90/0x28c fs/super.c:1751 fc_mount fs/namespace.c:1199 [inline] do_new_mount_fc fs/namespace.c:3636 [inline] do_new_mount+0x284/0x944 fs/namespace.c:3712 path_mount+0x5b4/0xdfc fs/namespace.c:4022 do_mount fs/namespace.c:4035 [inline] __do_sys_mount fs/namespace.c:4224 [inline] __se_sys_mount fs/namespace.c:4201 [inline] __arm64_sys_mount+0x3e8/0x468 fs/namespace.c:4201 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49 el0_svc_common+0xe8/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 Code: d503233f a9bf7bfd 910003fd 94b2ed0a (d4210000) ---[ end trace 0000000000000000 ]---