Hello, syzbot found the following issue on: HEAD commit: 7b1d1d4cfac0 Merge remote-tracking branch 'iommu/arm/smmu'.. 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=13c76fc0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=9bc44a6de1ceb5d6 dashboard link: https://syzkaller.appspot.com/bug?extid=e95a6bdd366a24c1bd70 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/4d4a0162c7c3/disk-7b1d1d4c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/a8c47a4be472/vmlinux-7b1d1d4c.xz kernel image: https://storage.googleapis.com/syzbot-assets/0e173b91f83e/Image-7b1d1d4c.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e95a6bdd366a24c1bd70@xxxxxxxxxxxxxxxxxxxxxxxxx Unable to handle kernel paging request at virtual address 001f7fe000185fc1 Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [001f7fe000185fc1] address between user and kernel address ranges Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP Modules linked in: CPU: 1 UID: 0 PID: 6614 Comm: syz.4.9 Not tainted 6.12.0-syzkaller-g7b1d1d4cfac0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __lock_acquire+0xfc/0x77c8 kernel/locking/lockdep.c:5065 lr : lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5825 sp : ffff8000a26d73a0 x29: ffff8000a26d7660 x28: ffff80008025d2e8 x27: 0000000000000000 x26: ffff0001b36404c0 x25: 0000000000000000 x24: 0000000000000001 x23: 0000000000000000 x22: 1ffff00011f1a0bc x21: 00ffff0000c2fe08 x20: 0000000000000001 x19: 0000000000000000 x18: ffff8000a26d72e0 x17: 0000000000023976 x16: ffff8000831615b0 x15: 0000000000000001 x14: 1fffe000185fbe00 x13: dfff800000000000 x12: ffff7000144dae9c x11: ffff800080359554 x10: ffff80008f8d05e4 x9 : 00000000000000f3 x8 : 001fffe000185fc1 x7 : ffff80008025d2e8 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 00ffff0000c2fe08 Call trace: __lock_acquire+0xfc/0x77c8 kernel/locking/lockdep.c:5065 (P) lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5825 (L) lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5825 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline] _raw_spin_lock_irq+0x58/0x70 kernel/locking/spinlock.c:170 put_pwq_unlocked kernel/workqueue.c:1662 [inline] destroy_workqueue+0x8d8/0xdc0 kernel/workqueue.c:5883 hci_release_dev+0x118/0x11a4 net/bluetooth/hci_core.c:2733 bt_host_release+0x70/0x88 net/bluetooth/hci_sysfs.c:94 device_release+0x8c/0x1ac kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x2a8/0x41c lib/kobject.c:737 put_device+0x28/0x40 drivers/base/core.c:3780 hci_free_dev+0x24/0x34 net/bluetooth/hci_core.c:2565 hci_uart_tty_close+0x184/0x2a0 drivers/bluetooth/hci_ldisc.c:555 tty_ldisc_close drivers/tty/tty_ldisc.c:455 [inline] tty_ldisc_kill+0x1b0/0x300 drivers/tty/tty_ldisc.c:613 tty_ldisc_release+0x190/0x23c drivers/tty/tty_ldisc.c:781 tty_release_struct+0x34/0xd4 drivers/tty/tty_io.c:1690 tty_release+0xb64/0x1014 drivers/tty/tty_io.c:1861 __fput+0x1bc/0x75c fs/file_table.c:431 ____fput+0x20/0x30 fs/file_table.c:459 task_work_run+0x230/0x2e0 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] do_notify_resume+0x178/0x1f4 arch/arm64/kernel/entry-common.c:151 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:169 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:178 [inline] el0_svc+0xac/0x168 arch/arm64/kernel/entry-common.c:745 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Code: f007aba8 b945e508 34008c88 d343fea8 (386d6908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: f007aba8 adrp x8, 0xf577000 4: b945e508 ldr w8, [x8, #1508] 8: 34008c88 cbz w8, 0x1198 c: d343fea8 lsr x8, x21, #3 * 10: 386d6908 ldrb w8, [x8, x13] <-- trapping instruction --- 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 report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
