syzbot has found a reproducer for the following issue on: HEAD commit: fe46a7dd189e Merge tag 'sound-6.9-rc1' of git://git.kernel.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=157a3321180000 kernel config: https://syzkaller.appspot.com/x/.config?x=1a07d5da4eb21586 dashboard link: https://syzkaller.appspot.com/bug?extid=776b5fc6c99745aa7860 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1623f5b1180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=110d1129180000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/b42ab0fd4947/disk-fe46a7dd.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/b8a6e7231930/vmlinux-fe46a7dd.xz kernel image: https://storage.googleapis.com/syzbot-assets/4fbf3e4ce6f8/bzImage-fe46a7dd.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/8dce556379ee/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+776b5fc6c99745aa7860@xxxxxxxxxxxxxxxxxxxxxxxxx jfs_dirty_inode called on read-only volume Is remount racy? BUG at fs/jfs/jfs_txnmgr.c:528 assert(tblk->next == 0) ------------[ cut here ]------------ kernel BUG at fs/jfs/jfs_txnmgr.c:528! invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 PID: 5253 Comm: syz-executor989 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:txEnd+0x583/0x5a0 fs/jfs/jfs_txnmgr.c:528 Code: e9 59 fb ff ff e8 bd 24 84 fe 48 c7 c1 40 a4 4a 8b ba 10 02 00 00 48 c7 c6 c0 9e 4a 8b 48 c7 c7 00 9f 4a 8b e8 5e f5 64 fe 90 <0f> 0b 48 89 ef e8 03 07 df fe e9 40 fd ff ff e8 c9 06 df fe e9 2e RSP: 0018:ffffc90008cc7ab8 EFLAGS: 00010282 RAX: 0000000000000036 RBX: ffffc900025d1110 RCX: ffffffff816f2339 RDX: 0000000000000000 RSI: ffffffff816fab26 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000001 R14: ffffffff8dd43da0 R15: ffffc900025d1112 FS: 00007fc48c2826c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc484d0b000 CR3: 000000001511e000 CR4: 0000000000350ef0 Call Trace: <TASK> add_missing_indices fs/jfs/jfs_dtree.c:2663 [inline] jfs_readdir+0x2952/0x4310 fs/jfs/jfs_dtree.c:3009 wrap_directory_iterator+0xa8/0xe0 fs/readdir.c:67 iterate_dir+0x295/0x9e0 fs/readdir.c:110 __do_sys_getdents fs/readdir.c:326 [inline] __se_sys_getdents fs/readdir.c:311 [inline] __x64_sys_getdents+0x14f/0x2d0 fs/readdir.c:311 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd5/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7fc48c2f6c39 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 1d 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc48c282168 EFLAGS: 00000246 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00007fc48c37e6d8 RCX: 00007fc48c2f6c39 RDX: 0000000000001000 RSI: 0000000020006600 RDI: 0000000000000005 RBP: 00007fc48c37e6d0 R08: 00007fc48c2826c0 R09: 0000000000000000 R10: 00007fc48c2826c0 R11: 0000000000000246 R12: 00007fc48c37e6dc R13: 000000000000006e R14: 00007ffdf1f02700 R15: 00007ffdf1f027e8 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:txEnd+0x583/0x5a0 fs/jfs/jfs_txnmgr.c:528 Code: e9 59 fb ff ff e8 bd 24 84 fe 48 c7 c1 40 a4 4a 8b ba 10 02 00 00 48 c7 c6 c0 9e 4a 8b 48 c7 c7 00 9f 4a 8b e8 5e f5 64 fe 90 <0f> 0b 48 89 ef e8 03 07 df fe e9 40 fd ff ff e8 c9 06 df fe e9 2e RSP: 0018:ffffc90008cc7ab8 EFLAGS: 00010282 RAX: 0000000000000036 RBX: ffffc900025d1110 RCX: ffffffff816f2339 RDX: 0000000000000000 RSI: ffffffff816fab26 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000001 R14: ffffffff8dd43da0 R15: ffffc900025d1112 FS: 00007fc48c2826c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc484d0b000 CR3: 000000001511e000 CR4: 0000000000350ef0 --- 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.
