Hello, syzbot found the following issue on: HEAD commit: 9d5906799f7d Merge tag 'selinux-pr-20240814' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12b7d5ed980000 kernel config: https://syzkaller.appspot.com/x/.config?x=7229118d88b4a71b dashboard link: https://syzkaller.appspot.com/bug?extid=d43eb079c2addf2439c3 compiler: Debian clang version 15.0.6, 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/8e704636e03c/disk-9d590679.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/51ba26ca8f22/vmlinux-9d590679.xz kernel image: https://storage.googleapis.com/syzbot-assets/8446039662e6/bzImage-9d590679.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d43eb079c2addf2439c3@xxxxxxxxxxxxxxxxxxxxxxxxx gfs2: fsid=syz:syz.0: can't create logd thread: -4 ================================ WARNING: inconsistent lock state 6.11.0-rc3-syzkaller-00036-g9d5906799f7d #0 Not tainted -------------------------------- inconsistent {IN-SOFTIRQ-W} -> {SOFTIRQ-ON-W} usage. syz.4.59/5557 [HC0[0]:SC0[0]:HE1:SE1] takes: ffff88802cd32548 ((&usbhid->io_retry)){+.?.}-{0:0}, at: touch_wq_lockdep_map kernel/workqueue.c:3876 [inline] ffff88802cd32548 ((&usbhid->io_retry)){+.?.}-{0:0}, at: __flush_workqueue+0x1b0/0x1710 kernel/workqueue.c:3918 {IN-SOFTIRQ-W} state was registered at: lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 call_timer_fn+0xdd/0x650 kernel/time/timer.c:1789 expire_timers kernel/time/timer.c:1843 [inline] __run_timers kernel/time/timer.c:2417 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428 run_timer_base kernel/time/timer.c:2437 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447 handle_softirqs+0x2c6/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194 __debug_check_no_obj_freed lib/debugobjects.c:999 [inline] debug_check_no_obj_freed+0x561/0x580 lib/debugobjects.c:1020 free_pages_prepare mm/page_alloc.c:1101 [inline] free_unref_page+0x38a/0xea0 mm/page_alloc.c:2612 __slab_free+0x31b/0x3d0 mm/slub.c:4384 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9e/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:322 kasan_slab_alloc include/linux/kasan.h:201 [inline] slab_post_alloc_hook mm/slub.c:3988 [inline] slab_alloc_node mm/slub.c:4037 [inline] __kmalloc_cache_node_noprof+0x166/0x300 mm/slub.c:4197 kmalloc_node_noprof include/linux/slab.h:704 [inline] __get_vm_area_node+0x113/0x270 mm/vmalloc.c:3109 __vmalloc_node_range_noprof+0x3bc/0x1460 mm/vmalloc.c:3801 __vmalloc_node_noprof mm/vmalloc.c:3906 [inline] vzalloc_noprof+0x79/0x90 mm/vmalloc.c:3979 alloc_counters+0xd7/0x740 net/ipv4/netfilter/ip_tables.c:799 copy_entries_to_user net/ipv6/netfilter/ip6_tables.c:837 [inline] get_entries net/ipv6/netfilter/ip6_tables.c:1039 [inline] do_ip6t_get_ctl+0xecc/0x1820 net/ipv6/netfilter/ip6_tables.c:1677 nf_getsockopt+0x29b/0x2c0 net/netfilter/nf_sockopt.c:116 ipv6_getsockopt+0x263/0x380 net/ipv6/ipv6_sockglue.c:1493 tcp_getsockopt+0x165/0x1c0 net/ipv4/tcp.c:4409 do_sock_getsockopt+0x375/0x850 net/socket.c:2386 __sys_getsockopt+0x271/0x330 net/socket.c:2415 __do_sys_getsockopt net/socket.c:2425 [inline] __se_sys_getsockopt net/socket.c:2422 [inline] __x64_sys_getsockopt+0xb5/0xd0 net/socket.c:2422 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f irq event stamp: 93075 hardirqs last enabled at (93075): [<ffffffff8bc06683>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:159 [inline] hardirqs last enabled at (93075): [<ffffffff8bc06683>] _raw_spin_unlock_irq+0x23/0x50 kernel/locking/spinlock.c:202 hardirqs last disabled at (93074): [<ffffffff8bc063cd>] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (93074): [<ffffffff8bc063cd>] _raw_spin_lock_irq+0xad/0x120 kernel/locking/spinlock.c:170 softirqs last enabled at (92472): [<ffffffff81575bd4>] __do_softirq kernel/softirq.c:588 [inline] softirqs last enabled at (92472): [<ffffffff81575bd4>] invoke_softirq kernel/softirq.c:428 [inline] softirqs last enabled at (92472): [<ffffffff81575bd4>] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 softirqs last disabled at (92431): [<ffffffff81575bd4>] __do_softirq kernel/softirq.c:588 [inline] softirqs last disabled at (92431): [<ffffffff81575bd4>] invoke_softirq kernel/softirq.c:428 [inline] softirqs last disabled at (92431): [<ffffffff81575bd4>] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock((&usbhid->io_retry)); <Interrupt> lock((&usbhid->io_retry)); *** DEADLOCK *** 1 lock held by syz.4.59/5557: #0: ffff888055c9a0e0 (&type->s_umount_key#66/1){+.+.}-{3:3}, at: alloc_super+0x221/0x9d0 fs/super.c:344 stack backtrace: CPU: 0 UID: 0 PID: 5557 Comm: syz.4.59 Not tainted 6.11.0-rc3-syzkaller-00036-g9d5906799f7d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:93 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119 valid_state+0x13a/0x1c0 kernel/locking/lockdep.c:4012 mark_lock_irq+0xbb/0xc20 kernel/locking/lockdep.c:4215 mark_lock+0x223/0x350 kernel/locking/lockdep.c:4677 __lock_acquire+0x11a6/0x2040 kernel/locking/lockdep.c:5096 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759 touch_wq_lockdep_map kernel/workqueue.c:3876 [inline] __flush_workqueue+0x1c9/0x1710 kernel/workqueue.c:3918 drain_workqueue+0xc9/0x3a0 kernel/workqueue.c:4082 destroy_workqueue+0xba/0xc40 kernel/workqueue.c:5781 gfs2_fill_super+0x128a/0x2500 fs/gfs2/ops_fstype.c:1310 get_tree_bdev+0x3f9/0x570 fs/super.c:1635 gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1329 vfs_get_tree+0x92/0x2a0 fs/super.c:1800 do_new_mount+0x2be/0xb40 fs/namespace.c:3472 do_mount fs/namespace.c:3812 [inline] __do_sys_mount fs/namespace.c:4020 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6490f7b0ba Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6491d08e68 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f6491d08ef0 RCX: 00007f6490f7b0ba RDX: 00000000200003c0 RSI: 0000000020037f80 RDI: 00007f6491d08eb0 RBP: 00000000200003c0 R08: 00007f6491d08ef0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020037f80 R13: 00007f6491d08eb0 R14: 0000000000037f59 R15: 0000000020000000 </TASK> list_del corruption, ffff88802cd32410->prev is LIST_POISON2 (dead000000000122) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:61! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 1 UID: 0 PID: 5557 Comm: syz.4.59 Not tainted 6.11.0-rc3-syzkaller-00036-g9d5906799f7d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 RIP: 0010:__list_del_entry_valid_or_report+0x106/0x140 lib/list_debug.c:59 Code: e8 3f e5 fa 06 90 0f 0b 48 c7 c7 e0 6c 60 8c 4c 89 fe e8 2d e5 fa 06 90 0f 0b 48 c7 c7 40 6d 60 8c 4c 89 fe e8 1b e5 fa 06 90 <0f> 0b 48 c7 c7 a0 6d 60 8c 4c 89 fe 48 89 d9 e8 06 e5 fa 06 90 0f RSP: 0018:ffffc90009017928 EFLAGS: 00010246 RAX: 000000000000004e RBX: dead000000000122 RCX: 6fba748022670100 RDX: ffffc90009049000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffff88802cd324f8 R08: ffffffff8173f24c R09: 1ffff92001202ec4 R10: dffffc0000000000 R11: fffff52001202ec5 R12: dffffc0000000000 R13: ffff88802cd32400 R14: ffff88802cd32810 R15: ffff88802cd32410 FS: 00007f6491d096c0(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007faf8fc47d60 CR3: 0000000022a12000 CR4: 0000000000350ef0 Call Trace: <TASK> __list_del_entry_valid include/linux/list.h:124 [inline] __list_del_entry include/linux/list.h:215 [inline] list_del_rcu include/linux/rculist.h:157 [inline] destroy_workqueue+0x7b3/0xc40 kernel/workqueue.c:5823 gfs2_fill_super+0x128a/0x2500 fs/gfs2/ops_fstype.c:1310 get_tree_bdev+0x3f9/0x570 fs/super.c:1635 gfs2_get_tree+0x54/0x220 fs/gfs2/ops_fstype.c:1329 vfs_get_tree+0x92/0x2a0 fs/super.c:1800 do_new_mount+0x2be/0xb40 fs/namespace.c:3472 do_mount fs/namespace.c:3812 [inline] __do_sys_mount fs/namespace.c:4020 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3997 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6490f7b0ba Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 7e 1a 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f6491d08e68 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007f6491d08ef0 RCX: 00007f6490f7b0ba RDX: 00000000200003c0 RSI: 0000000020037f80 RDI: 00007f6491d08eb0 RBP: 00000000200003c0 R08: 00007f6491d08ef0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020037f80 R13: 00007f6491d08eb0 R14: 0000000000037f59 R15: 0000000020000000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x106/0x140 lib/list_debug.c:59 Code: e8 3f e5 fa 06 90 0f 0b 48 c7 c7 e0 6c 60 8c 4c 89 fe e8 2d e5 fa 06 90 0f 0b 48 c7 c7 40 6d 60 8c 4c 89 fe e8 1b e5 fa 06 90 <0f> 0b 48 c7 c7 a0 6d 60 8c 4c 89 fe 48 89 d9 e8 06 e5 fa 06 90 0f RSP: 0018:ffffc90009017928 EFLAGS: 00010246 RAX: 000000000000004e RBX: dead000000000122 RCX: 6fba748022670100 RDX: ffffc90009049000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffff88802cd324f8 R08: ffffffff8173f24c R09: 1ffff92001202ec4 R10: dffffc0000000000 R11: fffff52001202ec5 R12: dffffc0000000000 R13: ffff88802cd32400 R14: ffff88802cd32810 R15: ffff88802cd32410 FS: 00007f6491d096c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007faaedf66731 CR3: 0000000022a12000 CR4: 0000000000350ef0 --- 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
