Hello, syzbot found the following issue on: HEAD commit: fdf0eaf11452 Linux 6.5-rc2 git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=1797783aa80000 kernel config: https://syzkaller.appspot.com/x/.config?x=27e33fd2346a54b dashboard link: https://syzkaller.appspot.com/bug?extid=607aa822c60b2e75b269 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=11322fb6a80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17687f1aa80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/0ac950f24d26/disk-fdf0eaf1.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/666fcbcfa05d/vmlinux-fdf0eaf1.xz kernel image: https://storage.googleapis.com/syzbot-assets/5bbe73baa630/bzImage-fdf0eaf1.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/85821d156573/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+607aa822c60b2e75b269@xxxxxxxxxxxxxxxxxxxxxxxxx Kernel panic - not syncing: hung_task: blocked tasks CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.5.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 panic+0x6a4/0x750 kernel/panic.c:340 check_hung_uninterruptible_tasks kernel/hung_task.c:226 [inline] watchdog+0xcf2/0x11b0 kernel/hung_task.c:379 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:296 RIP: 0000:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 0000:0000000000000000 EFLAGS: 00000000 ORIG_RAX: 0000000000000000 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> Kernel Offset: disabled Rebooting in 86400 seconds.. --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title 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. If you want to change bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
