loop0: rw=1, sector=376, nr_sectors = 8 limit=0
gfs2: fsid=syz:syz.0: Error 10 writing to journal, jid=0
syz.0.171: attempt to access beyond end of device
loop0: rw=1, sector=320, nr_sectors = 8 limit=0
gfs2: fsid=syz:syz.0: fatal: I/O error(s)
gfs2: fsid=syz:syz.0: about to withdraw this file system
BUG: sleeping function called from invalid context at fs/gfs2/util.c:159
in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 7730, name: syz.0.171
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
5 locks held by syz.0.171/7730:
 #0: ffff88807c9a2418 (sb_writers#20){.+.+}-{0:0}, at: vfs_writev fs/read_write.c:932 [inline]
 #0: ffff88807c9a2418 (sb_writers#20){.+.+}-{0:0}, at: do_pwritev+0x1f3/0x340 fs/read_write.c:1030
 #1: ffff8880602d0818 (&sb->s_type->i_mutex_key#26){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:804 [inline]
 #1: ffff8880602d0818 (&sb->s_type->i_mutex_key#26){+.+.}-{3:3}, at: gfs2_file_write_iter+0x304/0xe10 fs/gfs2/file.c:1115
 #2: ffff88802e3e9060 (&sdp->sd_log_flush_lock){++++}-{3:3}, at: gfs2_log_flush+0x104/0x24b0 fs/gfs2/log.c:1042
 #3: ffff88802e3e8e88 (&sdp->sd_log_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #3: ffff88802e3e8e88 (&sdp->sd_log_lock){+.+.}-{2:2}, at: gfs2_log_lock fs/gfs2/log.h:32 [inline]
 #3: ffff88802e3e8e88 (&sdp->sd_log_lock){+.+.}-{2:2}, at: gfs2_flush_revokes+0x52/0x80 fs/gfs2/log.c:814
 #4: ffff88802e3e9248 (&sdp->sd_freeze_mutex){+.+.}-{3:3}, at: signal_our_withdraw fs/gfs2/util.c:152 [inline]
 #4: ffff88802e3e9248 (&sdp->sd_freeze_mutex){+.+.}-{3:3}, at: gfs2_withdraw+0x41d/0x13b0 fs/gfs2/util.c:333
Preemption disabled at:
[<0000000000000000>] 0x0
CPU: 1 PID: 7730 Comm: syz.0.171 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x16c/0x230 lib/dump_stack.c:106
 __might_resched+0x491/0x610 kernel/sched/core.c:10208
 signal_our_withdraw fs/gfs2/util.c:157 [inline]
 gfs2_withdraw+0x46b/0x13b0 fs/gfs2/util.c:333
 gfs2_ail1_empty+0x7be/0x850 fs/gfs2/log.c:377
 gfs2_flush_revokes+0x5c/0x80 fs/gfs2/log.c:815
 revoke_lo_before_commit+0x2c/0x5f0 fs/gfs2/lops.c:867
 lops_before_commit fs/gfs2/lops.h:42 [inline]
 gfs2_log_flush+0xb84/0x24b0 fs/gfs2/log.c:1102
 gfs2_write_inode+0x23f/0x3d0 fs/gfs2/super.c:457
 write_inode fs/fs-writeback.c:1483 [inline]
 __writeback_single_inode+0x705/0xee0 fs/fs-writeback.c:1700
 writeback_single_inode+0x211/0x720 fs/fs-writeback.c:1756
 sync_inode_metadata+0xba/0x110 fs/fs-writeback.c:2822
 gfs2_fsync+0x1b6/0x350 fs/gfs2/file.c:762
 generic_write_sync+0x18d/0x200 include/linux/fs.h:2651
 gfs2_file_write_iter+0xb97/0xe10 fs/gfs2/file.c:1151
 do_iter_readv_writev fs/read_write.c:-1 [inline]
 do_iter_write+0x79a/0xc70 fs/read_write.c:860
 vfs_writev fs/read_write.c:933 [inline]
 do_pwritev+0x205/0x340 fs/read_write.c:1030
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fa52c38efc9
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:00007fa52d1b2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148
RAX: ffffffffffffffda RBX: 00007fa52c5e6090 RCX: 00007fa52c38efc9
RDX: 0000000000000001 RSI: 0000200000000240 RDI: 0000000000000006
RBP: 00007fa52c411f91 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000007800 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa52c5e6128 R14: 00007fa52c5e6090 R15: 00007ffe86368ba8
 </TASK>
BUG: scheduling while atomic: syz.0.171/7730/0x00000002
5 locks held by syz.0.171/7730:
 #0: ffff88807c9a2418 (sb_writers#20){.+.+}-{0:0}, at: vfs_writev fs/read_write.c:932 [inline]
 #0: ffff88807c9a2418 (sb_writers#20){.+.+}-{0:0}, at: do_pwritev+0x1f3/0x340 fs/read_write.c:1030
 #1: ffff8880602d0818 (&sb->s_type->i_mutex_key#26){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:804 [inline]
 #1: ffff8880602d0818 (&sb->s_type->i_mutex_key#26){+.+.}-{3:3}, at: gfs2_file_write_iter+0x304/0xe10 fs/gfs2/file.c:1115
 #2: ffff88802e3e9060 (&sdp->sd_log_flush_lock){++++}-{3:3}, at: gfs2_log_flush+0x104/0x24b0 fs/gfs2/log.c:1042
 #3: ffff88802e3e8e88 (&sdp->sd_log_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:351 [inline]
 #3: ffff88802e3e8e88 (&sdp->sd_log_lock){+.+.}-{2:2}, at: gfs2_log_lock fs/gfs2/log.h:32 [inline]
 #3: ffff88802e3e8e88 (&sdp->sd_log_lock){+.+.}-{2:2}, at: gfs2_flush_revokes+0x52/0x80 fs/gfs2/log.c:814
 #4: ffff88802e3e9248 (&sdp->sd_freeze_mutex){+.+.}-{3:3}, at: signal_our_withdraw fs/gfs2/util.c:152 [inline]
 #4: ffff88802e3e9248 (&sdp->sd_freeze_mutex){+.+.}-{3:3}, at: gfs2_withdraw+0x41d/0x13b0 fs/gfs2/util.c:333
Modules linked in:
Preemption disabled at:
[<0000000000000000>] 0x0