loop4: detected capacity change from 0 to 256
BUG: scheduling while atomic: syz-executor.4/11472/0x00000002
Modules linked in:
Preemption disabled at:
[<ffffffff81b74c44>] rmqueue_pcplist mm/page_alloc.c:3897 [inline]
[<ffffffff81b74c44>] rmqueue mm/page_alloc.c:3946 [inline]
[<ffffffff81b74c44>] get_page_from_freelist+0x554/0x2870 mm/page_alloc.c:4398
CPU: 1 PID: 11472 Comm: syz-executor.4 Not tainted 6.1.75-syzkaller-00123-g60534eef4739 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x151/0x1b7 lib/dump_stack.c:106
 dump_stack+0x15/0x1b lib/dump_stack.c:113
 __schedule_bug+0x195/0x260 kernel/sched/core.c:5960
 schedule_debug kernel/sched/core.c:5987 [inline]
 __schedule+0xcf7/0x1550 kernel/sched/core.c:6622
 schedule+0xc3/0x180 kernel/sched/core.c:6805
 io_schedule+0x8f/0x120 kernel/sched/core.c:8984
 bit_wait_io+0x15/0xd0 kernel/sched/wait_bit.c:209
 __wait_on_bit+0xaa/0x330 kernel/sched/wait_bit.c:49
 out_of_line_wait_on_bit+0x1ab/0x230 kernel/sched/wait_bit.c:64
 wait_on_bit_io include/linux/wait_bit.h:101 [inline]
 __wait_on_buffer fs/buffer.c:123 [inline]
 wait_on_buffer include/linux/buffer_head.h:385 [inline]
 __bread_slow fs/buffer.c:1221 [inline]
 __bread_gfp+0x24f/0x320 fs/buffer.c:1413
 sb_bread include/linux/buffer_head.h:338 [inline]
 fat__get_entry fs/fat/dir.c:100 [inline]
 fat_get_entry+0x78b/0xae0 fs/fat/dir.c:128
 fat_get_short_entry fs/fat/dir.c:873 [inline]
 fat_subdirs+0x223/0x3c0 fs/fat/dir.c:939
 fat_read_root+0x55b/0x7e0 fs/fat/inode.c:1417
 fat_fill_super+0x3656/0x4d70 fs/fat/inode.c:1864
 vfat_fill_super+0x31/0x40 fs/fat/namei_vfat.c:1200
 mount_bdev+0x282/0x3b0 fs/super.c:1434
 vfat_mount+0x34/0x40 fs/fat/namei_vfat.c:1207
 legacy_get_tree+0xf1/0x190 fs/fs_context.c:632
 vfs_get_tree+0x88/0x290 fs/super.c:1564
 do_new_mount+0x2ba/0xb30 fs/namespace.c:3051
 path_mount+0x671/0x1070 fs/namespace.c:3381
 do_mount fs/namespace.c:3394 [inline]
 __do_sys_mount fs/namespace.c:3602 [inline]
 __se_sys_mount+0x2c4/0x3b0 fs/namespace.c:3579
 __x64_sys_mount+0xbf/0xd0 fs/namespace.c:3579
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd74e07f56a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd74ed57ef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fd74ed57f80 RCX: 00007fd74e07f56a
RDX: 00000000200000c0 RSI: 0000000020000000 RDI: 00007fd74ed57f40
RBP: 00000000200000c0 R08: 00007fd74ed57f80 R09: 0000000002010000
R10: 0000000002010000 R11: 0000000000000202 R12: 0000000020000000
R13: 00007fd74ed57f40 R14: 0000000000000336 R15: 0000000020000200
 </TASK>
FAT-fs (loop4): Directory bread(block 64) failed
FAT-fs (loop4): Directory bread(block 65) failed
FAT-fs (loop4): Directory bread(block 66) failed
FAT-fs (loop4): Directory bread(block 67) failed
FAT-fs (loop4): Directory bread(block 68) failed
FAT-fs (loop4): Directory bread(block 69) failed
FAT-fs (loop4): Directory bread(block 70) failed
FAT-fs (loop4): Directory bread(block 71) failed
FAT-fs (loop4): Directory bread(block 72) failed
FAT-fs (loop4): Directory bread(block 73) failed