* [syzbot] [gfs2?] kernel BUG in gfs2_quota_cleanup
@ 2023-09-10 14:51 syzbot
2023-12-01 23:57 ` syzbot
` (2 more replies)
0 siblings, 3 replies; 6+ messages in thread
From: syzbot @ 2023-09-10 14:51 UTC (permalink / raw)
To: agruenba, gfs2, linux-fsdevel, linux-kernel, rpeterso, syzkaller-bugs
Hello,
syzbot found the following issue on:
HEAD commit: 65d6e954e378 Merge tag 'gfs2-v6.5-rc5-fixes' of git://git...
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=150b1d58680000
kernel config: https://syzkaller.appspot.com/x/.config?x=cbf8b29a87b8a830
dashboard link: https://syzkaller.appspot.com/bug?extid=3b6e67ac2b646da57862
compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/a239a86394dd/disk-65d6e954.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1d7af042d4c5/vmlinux-65d6e954.xz
kernel image: https://storage.googleapis.com/syzbot-assets/cdb5df52c1e3/bzImage-65d6e954.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3b6e67ac2b646da57862@syzkaller.appspotmail.com
RBP: 00007ffd0d57a210 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd0d57b2d0
R13: 00007fbf640c73b9 R14: 00000000002ca96c R15: 0000000000000003
</TASK>
------------[ cut here ]------------
kernel BUG at fs/gfs2/quota.c:1485!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 5074 Comm: syz-executor.4 Not tainted 6.5.0-syzkaller-11938-g65d6e954e378 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
RIP: 0010:gfs2_quota_cleanup+0x5cc/0x6e0 fs/gfs2/quota.c:1485
Code: ff e8 e8 3b e1 fd e8 73 40 e1 fd 49 8d b7 70 12 00 00 89 ea 48 c7 c7 a0 16 da 8a e8 be 5b c4 fd e9 1b fe ff ff e8 54 40 e1 fd <0f> 0b 4c 89 e7 e8 2a 3d 36 fe e9 ef fd ff ff e8 40 3d 36 fe e9 14
RSP: 0018:ffffc900038bfaf0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888076948200 RSI: ffffffff83a5622c RDI: 0000000000000007
RBP: dffffc0000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 000000000008c8e8 R12: 0000000000000000
R13: 0000000000000000 R14: ffffc900038bfb40 R15: ffff888036950000
FS: 0000555556145480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f68df122866 CR3: 000000003214a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
gfs2_make_fs_ro+0x11e/0x350 fs/gfs2/super.c:574
gfs2_put_super+0x66a/0x760 fs/gfs2/super.c:606
generic_shutdown_super+0x161/0x3c0 fs/super.c:693
kill_block_super+0x3b/0x70 fs/super.c:1646
gfs2_kill_sb+0x361/0x410 fs/gfs2/ops_fstype.c:1811
deactivate_locked_super+0x9a/0x170 fs/super.c:481
deactivate_super+0xde/0x100 fs/super.c:514
cleanup_mnt+0x222/0x3d0 fs/namespace.c:1254
task_work_run+0x14d/0x240 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x1d/0x60 kernel/entry/common.c:296
do_syscall_64+0x44/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fbf6407de17
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffd0d57a158 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fbf6407de17
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffd0d57a210
RBP: 00007ffd0d57a210 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd0d57b2d0
R13: 00007fbf640c73b9 R14: 00000000002ca96c R15: 0000000000000003
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:gfs2_quota_cleanup+0x5cc/0x6e0 fs/gfs2/quota.c:1485
Code: ff e8 e8 3b e1 fd e8 73 40 e1 fd 49 8d b7 70 12 00 00 89 ea 48 c7 c7 a0 16 da 8a e8 be 5b c4 fd e9 1b fe ff ff e8 54 40 e1 fd <0f> 0b 4c 89 e7 e8 2a 3d 36 fe e9 ef fd ff ff e8 40 3d 36 fe e9 14
RSP: 0018:ffffc900038bfaf0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888076948200 RSI: ffffffff83a5622c RDI: 0000000000000007
RBP: dffffc0000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 000000000008c8e8 R12: 0000000000000000
R13: 0000000000000000 R14: ffffc900038bfb40 R15: ffff888036950000
FS: 0000555556145480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f68df122866 CR3: 000000003214a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
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^ permalink raw reply [flat|nested] 6+ messages in thread* Re: [syzbot] [gfs2?] kernel BUG in gfs2_quota_cleanup 2023-09-10 14:51 [syzbot] [gfs2?] kernel BUG in gfs2_quota_cleanup syzbot @ 2023-12-01 23:57 ` syzbot 2023-12-02 9:25 ` [PATCH] gfs2: fix " Edward Adam Davis 2023-12-02 4:18 ` [syzbot] [gfs2?] " syzbot 2023-12-02 21:33 ` syzbot 2 siblings, 1 reply; 6+ messages in thread From: syzbot @ 2023-12-01 23:57 UTC (permalink / raw) To: agruenba, gfs2, linux-fsdevel, linux-kernel, rpeterso, syzkaller-bugs syzbot has found a reproducer for the following issue on: HEAD commit: 994d5c58e50e Merge tag 'hardening-v6.7-rc4' of git://git.k.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=165bc8d2e80000 kernel config: https://syzkaller.appspot.com/x/.config?x=c2c74446ab4f0028 dashboard link: https://syzkaller.appspot.com/bug?extid=3b6e67ac2b646da57862 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1268c086e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=164b3faae80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/dceb288ab9b9/disk-994d5c58.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/00a42d6cc05c/vmlinux-994d5c58.xz kernel image: https://storage.googleapis.com/syzbot-assets/039fd7f1b283/bzImage-994d5c58.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/4022e7b58a1d/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3b6e67ac2b646da57862@syzkaller.appspotmail.com gfs2: fsid=syz:syz.0: first mount done, others may mount ------------[ cut here ]------------ kernel BUG at fs/gfs2/quota.c:1508! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5060 Comm: syz-executor505 Not tainted 6.7.0-rc3-syzkaller-00134-g994d5c58e50e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:gfs2_quota_cleanup+0x6b5/0x6c0 fs/gfs2/quota.c:1508 Code: fe e9 cf fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 2d fe ff ff 4c 89 ef e8 b6 19 23 fe e9 20 fe ff ff e8 ec 11 c7 fd 90 <0f> 0b e8 84 9c 4f 07 0f 1f 40 00 66 0f 1f 00 55 41 57 41 56 41 54 RSP: 0018:ffffc9000409f9e0 EFLAGS: 00010293 RAX: ffffffff83c76854 RBX: 0000000000000002 RCX: ffff888026001dc0 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc9000409fb00 R08: ffffffff83c762b0 R09: 1ffff1100fd38015 R10: dffffc0000000000 R11: ffffed100fd38016 R12: dffffc0000000000 R13: ffff88807e9c0828 R14: ffff888014693580 R15: ffff88807e9c0000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f16d1bd70f8 CR3: 0000000027199000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> gfs2_put_super+0x2e1/0x940 fs/gfs2/super.c:611 generic_shutdown_super+0x13a/0x2c0 fs/super.c:696 kill_block_super+0x44/0x90 fs/super.c:1667 deactivate_locked_super+0xc1/0x130 fs/super.c:484 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256 task_work_run+0x24a/0x300 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa34/0x2750 kernel/exit.c:871 do_group_exit+0x206/0x2c0 kernel/exit.c:1021 __do_sys_exit_group kernel/exit.c:1032 [inline] __se_sys_exit_group kernel/exit.c:1030 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1030 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f16d1b4b789 Code: Unable to access opcode bytes at 0x7f16d1b4b75f. RSP: 002b:00007ffcad68ef38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f16d1b4b789 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 00007f16d1bd92d0 R08: ffffffffffffffb8 R09: 00007ffcad68f010 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f16d1bd92d0 R13: 0000000000000000 R14: 00007f16d1bda040 R15: 00007f16d1b19cc0 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:gfs2_quota_cleanup+0x6b5/0x6c0 fs/gfs2/quota.c:1508 Code: fe e9 cf fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 2d fe ff ff 4c 89 ef e8 b6 19 23 fe e9 20 fe ff ff e8 ec 11 c7 fd 90 <0f> 0b e8 84 9c 4f 07 0f 1f 40 00 66 0f 1f 00 55 41 57 41 56 41 54 RSP: 0018:ffffc9000409f9e0 EFLAGS: 00010293 RAX: ffffffff83c76854 RBX: 0000000000000002 RCX: ffff888026001dc0 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc9000409fb00 R08: ffffffff83c762b0 R09: 1ffff1100fd38015 R10: dffffc0000000000 R11: ffffed100fd38016 R12: dffffc0000000000 R13: ffff88807e9c0828 R14: ffff888014693580 R15: ffff88807e9c0000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f16d1bd70f8 CR3: 000000000d730000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] gfs2: fix kernel BUG in gfs2_quota_cleanup 2023-12-01 23:57 ` syzbot @ 2023-12-02 9:25 ` Edward Adam Davis 2023-12-05 13:51 ` Andreas Gruenbacher 0 siblings, 1 reply; 6+ messages in thread From: Edward Adam Davis @ 2023-12-02 9:25 UTC (permalink / raw) To: syzbot+3b6e67ac2b646da57862 Cc: agruenba, gfs2, linux-fsdevel, linux-kernel, rpeterso, syzkaller-bugs [Syz report] kernel BUG at fs/gfs2/quota.c:1508! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5060 Comm: syz-executor505 Not tainted 6.7.0-rc3-syzkaller-00134-g994d5c58e50e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:gfs2_quota_cleanup+0x6b5/0x6c0 fs/gfs2/quota.c:1508 Code: fe e9 cf fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c 2d fe ff ff 4c 89 ef e8 b6 19 23 fe e9 20 fe ff ff e8 ec 11 c7 fd 90 <0f> 0b e8 84 9c 4f 07 0f 1f 40 00 66 0f 1f 00 55 41 57 41 56 41 54 RSP: 0018:ffffc9000409f9e0 EFLAGS: 00010293 RAX: ffffffff83c76854 RBX: 0000000000000002 RCX: ffff888026001dc0 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000000 RBP: ffffc9000409fb00 R08: ffffffff83c762b0 R09: 1ffff1100fd38015 R10: dffffc0000000000 R11: ffffed100fd38016 R12: dffffc0000000000 R13: ffff88807e9c0828 R14: ffff888014693580 R15: ffff88807e9c0000 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f16d1bd70f8 CR3: 0000000027199000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> gfs2_put_super+0x2e1/0x940 fs/gfs2/super.c:611 generic_shutdown_super+0x13a/0x2c0 fs/super.c:696 kill_block_super+0x44/0x90 fs/super.c:1667 deactivate_locked_super+0xc1/0x130 fs/super.c:484 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256 task_work_run+0x24a/0x300 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa34/0x2750 kernel/exit.c:871 do_group_exit+0x206/0x2c0 kernel/exit.c:1021 __do_sys_exit_group kernel/exit.c:1032 [inline] __se_sys_exit_group kernel/exit.c:1030 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1030 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x45/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b ... [pid 5060] fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0) = 0 [pid 5060] exit_group(1) = ? ... [Analysis] When the task exits, it will execute cleanup_mnt() to recycle the mounted gfs2 file system, but it performs a system call fsconfig(4, FSCONFIG_CMD_RECONFIGURE, NULL, NULL, 0) before executing the task exit operation. This will execute the following kernel path to complete the setting of SDF_JOURNAL_LIVE for sd_flags: SYSCALL_DEFINE5(fsconfig, ..)-> vfs_fsconfig_locked()-> vfs_cmd_reconfigure()-> gfs2_reconfigure()-> gfs2_make_fs_rw()-> set_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags); [Fix] Add SDF_NORECOVERY check in gfs2_quota_cleanup() to avoid checking SDF_JOURNAL_LIVE on the path where gfs2 is being unmounted. Reported-and-tested-by: syzbot+3b6e67ac2b646da57862@syzkaller.appspotmail.com Signed-off-by: Edward Adam Davis <eadavis@qq.com> --- fs/gfs2/quota.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c index 95dae7838b4e..af32dd8a72fa 100644 --- a/fs/gfs2/quota.c +++ b/fs/gfs2/quota.c @@ -1505,7 +1505,8 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp) LIST_HEAD(dispose); int count; - BUG_ON(test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)); + BUG_ON(!test_bit(SDF_NORECOVERY, &sdp->sd_flags) && + test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)); spin_lock(&qd_lock); list_for_each_entry(qd, &sdp->sd_quota_list, qd_list) { -- 2.43.0 ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH] gfs2: fix kernel BUG in gfs2_quota_cleanup 2023-12-02 9:25 ` [PATCH] gfs2: fix " Edward Adam Davis @ 2023-12-05 13:51 ` Andreas Gruenbacher 0 siblings, 0 replies; 6+ messages in thread From: Andreas Gruenbacher @ 2023-12-05 13:51 UTC (permalink / raw) To: Edward Adam Davis Cc: syzbot+3b6e67ac2b646da57862, gfs2, linux-fsdevel, linux-kernel, rpeterso, syzkaller-bugs On Sat, Dec 2, 2023 at 10:34 AM Edward Adam Davis <eadavis@qq.com> wrote: > [Analysis] > When the task exits, it will execute cleanup_mnt() to recycle the mounted gfs2 > file system, but it performs a system call fsconfig(4, FSCONFIG_CMD_RECONFIGURE, > NULL, NULL, 0) before executing the task exit operation. > > This will execute the following kernel path to complete the setting of > SDF_JOURNAL_LIVE for sd_flags: > > SYSCALL_DEFINE5(fsconfig, ..)-> > vfs_fsconfig_locked()-> > vfs_cmd_reconfigure()-> > gfs2_reconfigure()-> > gfs2_make_fs_rw()-> > set_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags); > > [Fix] > Add SDF_NORECOVERY check in gfs2_quota_cleanup() to avoid checking > SDF_JOURNAL_LIVE on the path where gfs2 is being unmounted. Thanks for this fix, I've applied it and added the following tag: Fixes: f66af88e3321 ("gfs2: Stop using gfs2_make_fs_ro for withdraw") > > Reported-and-tested-by: syzbot+3b6e67ac2b646da57862@syzkaller.appspotmail.com > Signed-off-by: Edward Adam Davis <eadavis@qq.com> > --- > fs/gfs2/quota.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c > index 95dae7838b4e..af32dd8a72fa 100644 > --- a/fs/gfs2/quota.c > +++ b/fs/gfs2/quota.c > @@ -1505,7 +1505,8 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp) > LIST_HEAD(dispose); > int count; > > - BUG_ON(test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)); > + BUG_ON(!test_bit(SDF_NORECOVERY, &sdp->sd_flags) && > + test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)); > > spin_lock(&qd_lock); > list_for_each_entry(qd, &sdp->sd_quota_list, qd_list) { > -- > 2.43.0 Thanks, Andreas ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [syzbot] [gfs2?] kernel BUG in gfs2_quota_cleanup 2023-09-10 14:51 [syzbot] [gfs2?] kernel BUG in gfs2_quota_cleanup syzbot 2023-12-01 23:57 ` syzbot @ 2023-12-02 4:18 ` syzbot 2023-12-02 21:33 ` syzbot 2 siblings, 0 replies; 6+ messages in thread From: syzbot @ 2023-12-02 4:18 UTC (permalink / raw) To: linux-kernel For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org. *** Subject: [gfs2?] kernel BUG in gfs2_quota_cleanup Author: eadavis@qq.com please test kernel BUG in gfs2_quota_cleanup #syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 994d5c58e50e diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c index 95dae7838b4e..af32dd8a72fa 100644 --- a/fs/gfs2/quota.c +++ b/fs/gfs2/quota.c @@ -1505,7 +1505,8 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp) LIST_HEAD(dispose); int count; - BUG_ON(test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)); + BUG_ON(!test_bit(SDF_NORECOVERY, &sdp->sd_flags) && + test_bit(SDF_JOURNAL_LIVE, &sdp->sd_flags)); spin_lock(&qd_lock); list_for_each_entry(qd, &sdp->sd_quota_list, qd_list) { ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [syzbot] [gfs2?] kernel BUG in gfs2_quota_cleanup 2023-09-10 14:51 [syzbot] [gfs2?] kernel BUG in gfs2_quota_cleanup syzbot 2023-12-01 23:57 ` syzbot 2023-12-02 4:18 ` [syzbot] [gfs2?] " syzbot @ 2023-12-02 21:33 ` syzbot 2 siblings, 0 replies; 6+ messages in thread From: syzbot @ 2023-12-02 21:33 UTC (permalink / raw) To: agruenba, eadavis, gfs2, juntong.deng, linux-fsdevel, linux-kernel, rpeterso, syzkaller-bugs syzbot has bisected this issue to: commit bdcb8aa434c6d36b5c215d02a9ef07551be25a37 Author: Juntong Deng <juntong.deng@outlook.com> Date: Sun Oct 29 21:10:06 2023 +0000 gfs2: Fix slab-use-after-free in gfs2_qd_dealloc bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=169c7b52e80000 start commit: 994d5c58e50e Merge tag 'hardening-v6.7-rc4' of git://git.k.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=159c7b52e80000 console output: https://syzkaller.appspot.com/x/log.txt?x=119c7b52e80000 kernel config: https://syzkaller.appspot.com/x/.config?x=c2c74446ab4f0028 dashboard link: https://syzkaller.appspot.com/bug?extid=3b6e67ac2b646da57862 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1268c086e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=164b3faae80000 Reported-by: syzbot+3b6e67ac2b646da57862@syzkaller.appspotmail.com Fixes: bdcb8aa434c6 ("gfs2: Fix slab-use-after-free in gfs2_qd_dealloc") For information about bisection process see: https://goo.gl/tpsmEJ#bisection ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2023-12-05 13:51 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2023-09-10 14:51 [syzbot] [gfs2?] kernel BUG in gfs2_quota_cleanup syzbot 2023-12-01 23:57 ` syzbot 2023-12-02 9:25 ` [PATCH] gfs2: fix " Edward Adam Davis 2023-12-05 13:51 ` Andreas Gruenbacher 2023-12-02 4:18 ` [syzbot] [gfs2?] " syzbot 2023-12-02 21:33 ` syzbot
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