erofs: (device loop3): z_erofs_readpage: failed to read, err [-95] BUG: sleeping function called from invalid context at fs/dcache.c:877 in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 4319, name: syz.3.7 1 lock held by syz.3.7/4319: #0: ffff88805f124180 (&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:822 [inline] #0: ffff88805f124180 (&type->i_mutex_dir_key#9/1){+.+.}-{3:3}, at: filename_create+0x1f2/0x450 fs/namei.c:3843 Preemption disabled at: [] kmap_atomic include/linux/highmem-internal.h:196 [inline] [] z_erofs_reload_indexes+0x347/0x590 fs/erofs/zmap.c:146 CPU: 0 PID: 4319 Comm: syz.3.7 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106 ___might_sleep+0x47c/0x600 kernel/sched/core.c:9658 dput+0x26/0x1a0 fs/dcache.c:877 lookup_one_qstr_excl+0x1d6/0x240 fs/namei.c:1573 filename_create+0x21e/0x450 fs/namei.c:3844 do_mknodat+0x16e/0x620 fs/namei.c:3989 __do_sys_mknod fs/namei.c:4035 [inline] __se_sys_mknod fs/namei.c:4033 [inline] __x64_sys_mknod+0x8a/0xa0 fs/namei.c:4033 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fa4e2ea0749 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa4e1107038 EFLAGS: 00000246 ORIG_RAX: 0000000000000085 RAX: ffffffffffffffda RBX: 00007fa4e30f6fa0 RCX: 00007fa4e2ea0749 RDX: 0000000000000000 RSI: 000000000000c000 RDI: 0000200000000080 RBP: 00007fa4e2f24f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa4e30f7038 R14: 00007fa4e30f6fa0 R15: 00007fffc21863d8 BUG: scheduling while atomic: syz.3.7/4319/0x00000002 no locks held by syz.3.7/4319. Modules linked in: Preemption disabled at: [] kmap_atomic include/linux/highmem-internal.h:196 [inline] [] z_erofs_reload_indexes+0x347/0x590 fs/erofs/zmap.c:146