syzbot


kernel panic: stack is corrupted in __might_resched

Status: upstream: reported on 2022/10/05 09:06
Reported-by: syzbot+34cc87acc93740589aa6@syzkaller.appspotmail.com
First crash: 52d, last: 52d

Sample crash report:
ntfs3: loop4: Different NTFS' sector size (1024) and media sector size (512)
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: __might_resched+0x6a6/0x6b0
CPU: 1 PID: 16328 Comm: syz-executor.4 Not tainted 6.0.0-syzkaller-02734-g0326074ff465 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
 panic+0x2d6/0x715 kernel/panic.c:274
 __stack_chk_fail+0x12/0x20 kernel/panic.c:706
 __might_resched+0x6a6/0x6b0
 write_inode_now+0x1bb/0x260 fs/fs-writeback.c:2722
 iput_final fs/inode.c:1735 [inline]
 iput+0x3e6/0x760 fs/inode.c:1774
 ntfs_fill_super+0x3af3/0x42a0 fs/ntfs3/super.c:1190
 get_tree_bdev+0x400/0x620 fs/super.c:1323
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x289/0xad0 fs/namespace.c:3040
 do_mount fs/namespace.c:3383 [inline]
 __do_sys_mount fs/namespace.c:3591 [inline]
 __se_sys_mount+0x2d3/0x3c0 fs/namespace.c:3568
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0875e8bada
Code: 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb d2 e8 b8 04 00 00 0f 1f 84 00 00 00 00 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0876f3df88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 0000000020000200 RCX: 00007f0875e8bada
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f0876f3dfe0
RBP: 00007f0876f3e020 R08: 00007f0876f3e020 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 00007f0876f3dfe0 R15: 0000000020002900
 </TASK>
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-upstream-fs 2022/10/05 07:12 upstream 0326074ff465 267e3bb1 .config log report info kernel panic: stack is corrupted in __might_resched
* Struck through repros no longer work on HEAD.