ocfs2: Finishing quota recovery on device (7,0) for slot 0 ===================================================== BUG: KMSAN: uninit-value in variable__ffs arch/x86/include/asm/bitops.h:251 [inline] BUG: KMSAN: uninit-value in _find_next_bit+0x133/0x140 lib/find_bit.c:156 variable__ffs arch/x86/include/asm/bitops.h:251 [inline] _find_next_bit+0x133/0x140 lib/find_bit.c:156 find_next_bit include/linux/find.h:71 [inline] ocfs2_recover_local_quota_file fs/ocfs2/quota_local.c:487 [inline] ocfs2_finish_quota_recovery+0xa93/0x3ea0 fs/ocfs2/quota_local.c:638 ocfs2_complete_recovery+0x29c1/0x3ad0 fs/ocfs2/journal.c:1379 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xb8e/0x1d80 kernel/workqueue.c:3321 worker_thread+0xedf/0x1590 kernel/workqueue.c:3402 kthread+0xd5c/0xf00 kernel/kthread.c:464 ret_from_fork+0x1e3/0x310 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Uninit was created at: slab_post_alloc_hook mm/slub.c:4153 [inline] slab_alloc_node mm/slub.c:4196 [inline] __do_kmalloc_node mm/slub.c:4326 [inline] __kmalloc_noprof+0x95f/0x1310 mm/slub.c:4339 kmalloc_noprof include/linux/slab.h:909 [inline] ocfs2_add_recovery_chunk fs/ocfs2/quota_local.c:305 [inline] ocfs2_recovery_load_quota+0x44a/0x1290 fs/ocfs2/quota_local.c:360 ocfs2_local_read_info+0x147f/0x2e30 fs/ocfs2/quota_local.c:749 dquot_load_quota_sb+0x9ef/0xd60 fs/quota/dquot.c:2459 dquot_load_quota_inode+0x4c5/0x7a0 fs/quota/dquot.c:2496 ocfs2_enable_quotas+0x1d3/0x730 fs/ocfs2/super.c:930 ocfs2_fill_super+0xabc4/0xb2d0 fs/ocfs2/super.c:1140 get_tree_bdev_flags+0x6e3/0x920 fs/super.c:1679 get_tree_bdev+0x38/0x50 fs/super.c:1702 ocfs2_get_tree+0x35/0x40 fs/ocfs2/super.c:1184 vfs_get_tree+0xb0/0x5c0 fs/super.c:1802 do_new_mount+0x738/0x1610 fs/namespace.c:3856 path_mount+0x6db/0x1e90 fs/namespace.c:4180 do_mount fs/namespace.c:4193 [inline] __do_sys_mount fs/namespace.c:4404 [inline] __se_sys_mount+0x6eb/0x7d0 fs/namespace.c:4381 __x64_sys_mount+0xe4/0x150 fs/namespace.c:4381 x64_sys_call+0xfa7/0x3db0 arch/x86/include/generated/asm/syscalls_64.h:166 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f CPU: 0 UID: 0 PID: 1130 Comm: kworker/u8:5 Not tainted 6.15.0-syzkaller-11796-g5abc7438f1e9 #0 PREEMPT(undef) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: ocfs2_wq ocfs2_complete_recovery =====================================================