Messages in this thread | | | Date | Fri, 25 Nov 2022 05:20:48 -0800 | Subject | Re: [syzbot] kernel BUG in add_to_queue | From | syzbot <> |
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syzbot has found a reproducer for the following issue on:
HEAD commit: 65762d97e6fa Merge branch 'for-next/perf' into for-kernelci git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=12198e75880000 kernel config: https://syzkaller.appspot.com/x/.config?x=56d0c7c3a2304e8f dashboard link: https://syzkaller.appspot.com/bug?extid=8a4b520a9affc6d8ea56 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=146e6e75880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1762a3ed880000
Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/52f702197b30/disk-65762d97.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/72189c2789ce/vmlinux-65762d97.xz kernel image: https://storage.googleapis.com/syzbot-assets/ec0349196c98/Image-65762d97.gz.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/9fcb4ad786f5/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8a4b520a9affc6d8ea56@syzkaller.appspotmail.com
gfs2: fsid=syz:syz.0: G: s:EX n:8/1 f:qb t:EX d:EX/0 a:0 v:0 r:5 m:20 p:0 gfs2: fsid=syz:syz.0: H: s:EX f:cH e:0 p:3074 [syz-executor203] gfs2_quota_sync+0xf0/0x204 fs/gfs2/quota.c:1318 ------------[ cut here ]------------ kernel BUG at fs/gfs2/glock.c:1560! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 3074 Comm: syz-executor203 Not tainted 6.1.0-rc6-syzkaller-32653-g65762d97e6fa #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : add_to_queue+0x6ec/0x780 fs/gfs2/glock.c:1559 lr : add_to_queue+0x6ec/0x780 fs/gfs2/glock.c:1559 sp : ffff800012deb950 x29: ffff800012deb960 x28: ffff0000cbfa6e80 x27: ffff0000ccea2000 x26: ffff0000cbfa6e80 x25: 0000000000000400 x24: ffff0000c207a800 x23: 0000000000000000 x22: ffff0000c207a800 x21: ffff0000ccea3270 x20: ffff0000cbfa6eb8 x19: ffff0000c70fc550 x18: 00000000000000c0 x17: 5d333032726f7475 x16: ffff80000dbe6158 x15: ffff0000c4248000 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000c4248000 x11: ff8080000926a440 x10: 0000000000000000 x9 : 739e9965397fe700 x8 : 739e9965397fe700 x7 : ffff80000c08e4f4 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000001 x0 : 0000000000000000 Call trace: add_to_queue+0x6ec/0x780 fs/gfs2/glock.c:1559 gfs2_glock_nq+0x90/0x220 fs/gfs2/glock.c:1585 gfs2_glock_nq_init fs/gfs2/glock.h:264 [inline] do_sync+0x1dc/0x650 fs/gfs2/quota.c:910 gfs2_quota_sync+0xf0/0x204 fs/gfs2/quota.c:1318 gfs2_sync_fs+0x30/0x78 fs/gfs2/super.c:643 sync_filesystem+0x68/0x134 fs/sync.c:56 generic_shutdown_super+0x38/0x198 fs/super.c:474 kill_block_super+0x30/0x78 fs/super.c:1428 gfs2_kill_sb+0x68/0x78 deactivate_locked_super+0x70/0xe8 fs/super.c:332 deactivate_super+0xd0/0xd4 fs/super.c:363 cleanup_mnt+0x184/0x1c0 fs/namespace.c:1186 __cleanup_mnt+0x20/0x30 fs/namespace.c:1193 task_work_run+0x100/0x148 kernel/task_work.c:179 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x2dc/0xcac kernel/exit.c:820 __arm64_sys_exit_group+0x0/0x18 kernel/exit.c:950 __do_sys_exit_group kernel/exit.c:961 [inline] __se_sys_exit_group kernel/exit.c:959 [inline] __wake_up_parent+0x0/0x40 kernel/exit.c:959 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 Code: 52800022 aa1f03e0 aa1303e1 97fff219 (d4210000) ---[ end trace 0000000000000000 ]---
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