audit: type=1400 audit(1664423588.650:8): avc: denied { kernel } for pid=5301 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=perf_event permissive=1 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5308 at kernel/events/core.c:2233 event_filter_match+0x422/0x660 Modules linked in: CPU: 0 PID: 5308 Comm: syz-executor.6 Not tainted 6.0.0-rc7-next-20220928 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:event_filter_match+0x422/0x660 Code: 00 00 00 e9 7c fc ff ff e8 bb 2e f1 ff 65 8b 2d d0 97 ad 7e 31 ff 89 ee e8 5b 2b f1 ff 85 ed 0f 84 ef 00 00 00 e8 9e 2e f1 ff <0f> 0b eb 9f e8 c5 a5 23 00 e9 17 fc ff ff e8 8b 2e f1 ff 48 8d 7b RSP: 0018:ffff88806ce09c70 EFLAGS: 00010046 RAX: 0000000080010002 RBX: ffff88802fba05c8 RCX: 0000000000000000 RDX: ffff888017d85040 RSI: ffffffff8154de02 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000000 R11: ffffffff865b401b R12: ffff88802fba07e8 R13: 0000000000000000 R14: ffff88802fba0670 R15: ffff88802fba07e8 FS: 00007ff793401700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32722000 CR3: 000000001767c000 CR4: 0000000000350ef0 Call Trace: merge_sched_in+0x107/0x1110 visit_groups_merge.constprop.0.isra.0+0x4fc/0xef0 ctx_sched_in+0x2e6/0x770 perf_event_sched_in+0x75/0x80 ctx_resched+0x1ce/0x390 __perf_install_in_context+0x285/0x9c0 remote_function+0x125/0x1b0 __flush_smp_call_function_queue+0x1df/0x5a0 __sysvec_call_function_single+0x92/0x3a0 sysvec_call_function_single+0x89/0xc0 asm_sysvec_call_function_single+0x16/0x20 RIP: 0010:lock_is_held_type+0xf8/0x130 Code: 80 f2 86 84 e8 a9 0c 00 00 b8 ff ff ff ff 65 0f c1 05 6c 73 dd 7b 83 f8 01 75 26 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f e9 e6 36 3b 00 45 31 ed eb RSP: 0018:ffff88802fbbfa10 EFLAGS: 00000292 RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffffff854072a0 R08: 0000000000000000 R09: ffffffff85b064d7 R10: fffffbfff0b60c9a R11: 0000000000000001 R12: ffff888017d85040 R13: 0000000000000000 R14: 00000000ffffffff R15: ffff888017d859b8 rcu_read_lock_sched_held+0x3e/0x80 lock_release+0x547/0x750 exit_signals+0x207/0x8b0 do_exit+0x53f/0x27f0 do_group_exit+0xd0/0x2a0 get_signal+0x2195/0x22d0 arch_do_signal_or_restart+0x89/0x1be0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x19/0x40 do_syscall_64+0x48/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff795e8bb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff793401218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007ff795f9ef68 RCX: 00007ff795e8bb19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff795f9ef68 RBP: 00007ff795f9ef60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff795f9ef6c R13: 00007fffec9cdc7f R14: 00007ff793401300 R15: 0000000000022000 irq event stamp: 416 hardirqs last enabled at (415): [] _raw_spin_unlock_irq+0x1f/0x50 hardirqs last disabled at (416): [] sysvec_call_function_single+0xb/0xc0 softirqs last enabled at (394): [] do_ipv6_setsockopt+0x38f/0x4520 softirqs last disabled at (392): [] release_sock+0x1b/0x1b0 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5308 at kernel/events/core.c:2557 merge_sched_in+0xadb/0x1110 Modules linked in: CPU: 0 PID: 5308 Comm: syz-executor.6 Tainted: G W 6.0.0-rc7-next-20220928 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:merge_sched_in+0xadb/0x1110 Code: ff ff e8 48 09 ef ff 65 8b 05 5d 72 ab 7e 31 ff 89 c6 89 04 24 e8 e5 05 ef ff 8b 04 24 85 c0 0f 84 13 02 00 00 e8 25 09 ef ff <0f> 0b e9 c4 fb ff ff e8 19 09 ef ff 4c 89 e8 48 05 18 01 00 00 e9 RSP: 0018:ffff88806ce09cb0 EFLAGS: 00010046 RAX: 0000000080010002 RBX: ffff88806ce3d140 RCX: 0000000000000000 RDX: ffff888017d85040 RSI: ffffffff8157037b RDI: 0000000000000005 RBP: ffff88802fba05c8 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000000 R11: ffffffff865b401b R12: ffff88806ce3d140 R13: ffff88806ce00000 R14: ffff88802fba0670 R15: ffff88802fba07e8 FS: 00007ff793401700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32722000 CR3: 000000001767c000 CR4: 0000000000350ef0 Call Trace: visit_groups_merge.constprop.0.isra.0+0x4fc/0xef0 ctx_sched_in+0x2e6/0x770 perf_event_sched_in+0x75/0x80 ctx_resched+0x1ce/0x390 __perf_install_in_context+0x285/0x9c0 remote_function+0x125/0x1b0 __flush_smp_call_function_queue+0x1df/0x5a0 __sysvec_call_function_single+0x92/0x3a0 sysvec_call_function_single+0x89/0xc0 asm_sysvec_call_function_single+0x16/0x20 RIP: 0010:lock_is_held_type+0xf8/0x130 Code: 80 f2 86 84 e8 a9 0c 00 00 b8 ff ff ff ff 65 0f c1 05 6c 73 dd 7b 83 f8 01 75 26 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f e9 e6 36 3b 00 45 31 ed eb RSP: 0018:ffff88802fbbfa10 EFLAGS: 00000292 RAX: 0000000000000001 RBX: 0000000000000001 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffffff854072a0 R08: 0000000000000000 R09: ffffffff85b064d7 R10: fffffbfff0b60c9a R11: 0000000000000001 R12: ffff888017d85040 R13: 0000000000000000 R14: 00000000ffffffff R15: ffff888017d859b8 rcu_read_lock_sched_held+0x3e/0x80 lock_release+0x547/0x750 exit_signals+0x207/0x8b0 do_exit+0x53f/0x27f0 do_group_exit+0xd0/0x2a0 get_signal+0x2195/0x22d0 arch_do_signal_or_restart+0x89/0x1be0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x19/0x40 do_syscall_64+0x48/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7ff795e8bb19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff793401218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007ff795f9ef68 RCX: 00007ff795e8bb19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007ff795f9ef68 RBP: 00007ff795f9ef60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff795f9ef6c R13: 00007fffec9cdc7f R14: 00007ff793401300 R15: 0000000000022000 irq event stamp: 416 hardirqs last enabled at (415): [] _raw_spin_unlock_irq+0x1f/0x50 hardirqs last disabled at (416): [] sysvec_call_function_single+0xb/0xc0 softirqs last enabled at (394): [] do_ipv6_setsockopt+0x38f/0x4520 softirqs last disabled at (392): [] release_sock+0x1b/0x1b0 ---[ end trace 0000000000000000 ]--- UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy misc raw-gadget: fail, usb_gadget_register_driver returned -16 ------------[ cut here ]------------ ====================================================== ---------------- Code disassembly (best guess), 1 bytes skipped: 0: f2 86 84 e8 a9 0c 00 xacquire xchg %al,0xca9(%rax,%rbp,8) 7: 00 8: b8 ff ff ff ff mov $0xffffffff,%eax d: 65 0f c1 05 6c 73 dd xadd %eax,%gs:0x7bdd736c(%rip) # 0x7bdd7381 14: 7b 15: 83 f8 01 cmp $0x1,%eax 18: 75 26 jne 0x40 1a: 48 f7 04 24 00 02 00 testq $0x200,(%rsp) 21: 00 22: 74 01 je 0x25 24: fb sti 25: 48 83 c4 08 add $0x8,%rsp * 29: 44 89 e8 mov %r13d,%eax <-- trapping instruction 2c: 5b pop %rbx 2d: 5d pop %rbp 2e: 41 5c pop %r12 30: 41 5d pop %r13 32: 41 5e pop %r14 34: 41 5f pop %r15 36: e9 e6 36 3b 00 jmpq 0x3b3721 3b: 45 31 ed xor %r13d,%r13d 3e: eb .byte 0xeb