audit: type=1400 audit(1664880640.358:8): avc: denied { kernel } for pid=5349 comm="syz-executor.4" 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: 5321 at kernel/events/core.c:2233 event_filter_match+0x422/0x660 Modules linked in: CPU: 0 PID: 5321 Comm: syz-executor.7 Not tainted 6.0.0-rc7-next-20220930 #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 7b 33 f1 ff 65 8b 2d 00 9d ad 7e 31 ff 89 ee e8 1b 30 f1 ff 85 ed 0f 84 ef 00 00 00 e8 5e 33 f1 ff <0f> 0b eb 9f e8 d5 a1 23 00 e9 17 fc ff ff e8 4b 33 f1 ff 48 8d 7b RSP: 0018:ffff88806ce09c70 EFLAGS: 00010046 RAX: 0000000080010001 RBX: ffff888038c20000 RCX: 0000000000000000 RDX: ffff88803f3ab580 RSI: ffffffff8154d8d2 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000000 R11: ffffffff865b401b R12: ffff888038c20220 R13: 0000000000000000 R14: ffff888038c200a8 R15: ffff888038c20220 FS: 0000555555e6d400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f79b08192b8 CR3: 0000000018b86000 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_acquire+0x1db/0x530 Code: 02 b8 ff ff ff ff 65 0f c1 05 71 52 d8 7e 83 f8 01 0f 85 c8 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffff88801becfcc8 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff110037d9f9b RCX: 000000000000451e RDX: 1ffff11007e757de RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff86cd37ef R10: fffffbfff0d9a6fd R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000000 R14: ffff8880175e3258 R15: 0000000000000000 __might_fault+0xfb/0x170 _copy_from_user+0x25/0x170 get_timespec64+0x75/0x190 __x64_sys_clock_nanosleep+0x1b1/0x420 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe67c2d08e1 Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 aa e7 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 e3 e7 ff ff 48 8b 04 24 eb 97 66 2e 0f 1f RSP: 002b:00007ffceac7aa60 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 000000000002b342 RCX: 00007fe67c2d08e1 RDX: 00007ffceac7aaa0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffceacba080 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe67c3bef60 R13: 00007fe67c3bfb60 R14: 00007fe67c3bef60 R15: 000000000002b001 irq event stamp: 4942 hardirqs last enabled at (4941): [] syscall_enter_from_user_mode+0x1d/0x50 hardirqs last disabled at (4942): [] sysvec_call_function_single+0xb/0xc0 softirqs last enabled at (4460): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4449): [] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5321 at kernel/events/core.c:2557 merge_sched_in+0xadb/0x1110 Modules linked in: CPU: 0 PID: 5321 Comm: syz-executor.7 Tainted: G W 6.0.0-rc7-next-20220930 #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 08 0e ef ff 65 8b 05 8d 77 ab 7e 31 ff 89 c6 89 04 24 e8 a5 0a ef ff 8b 04 24 85 c0 0f 84 13 02 00 00 e8 e5 0d ef ff <0f> 0b e9 c4 fb ff ff e8 d9 0d ef ff 4c 89 e8 48 05 18 01 00 00 e9 RSP: 0018:ffff88806ce09cb0 EFLAGS: 00010046 RAX: 0000000080010001 RBX: ffff88806ce3f200 RCX: 0000000000000000 RDX: ffff88803f3ab580 RSI: ffffffff8156fe4b RDI: 0000000000000005 RBP: ffff888038c20000 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000000 R11: ffffffff865b401b R12: ffff88806ce3f200 R13: 0000000000000001 R14: ffff888038c200a8 R15: ffff888038c20220 FS: 0000555555e6d400(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f79b08192b8 CR3: 0000000018b86000 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_acquire+0x1db/0x530 Code: 02 b8 ff ff ff ff 65 0f c1 05 71 52 d8 7e 83 f8 01 0f 85 c8 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24 RSP: 0018:ffff88801becfcc8 EFLAGS: 00000206 RAX: dffffc0000000000 RBX: 1ffff110037d9f9b RCX: 000000000000451e RDX: 1ffff11007e757de RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff86cd37ef R10: fffffbfff0d9a6fd R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000000 R14: ffff8880175e3258 R15: 0000000000000000 __might_fault+0xfb/0x170 _copy_from_user+0x25/0x170 get_timespec64+0x75/0x190 __x64_sys_clock_nanosleep+0x1b1/0x420 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe67c2d08e1 Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 aa e7 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 e3 e7 ff ff 48 8b 04 24 eb 97 66 2e 0f 1f RSP: 002b:00007ffceac7aa60 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 000000000002b342 RCX: 00007fe67c2d08e1 RDX: 00007ffceac7aaa0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000001 R08: 0000000000000000 R09: 00007ffceacba080 R10: 0000000000000000 R11: 0000000000000293 R12: 00007fe67c3bef60 R13: 00007fe67c3bfb60 R14: 00007fe67c3bef60 R15: 000000000002b001 irq event stamp: 4942 hardirqs last enabled at (4941): [] syscall_enter_from_user_mode+0x1d/0x50 hardirqs last disabled at (4942): [] sysvec_call_function_single+0xb/0xc0 softirqs last enabled at (4460): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4449): [] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- hrtimer: interrupt took 35176 ns ------------[ cut here ]------------ ====================================================== ---------------- Code disassembly (best guess): 0: 02 b8 ff ff ff ff add -0x1(%rax),%bh 6: 65 0f c1 05 71 52 d8 xadd %eax,%gs:0x7ed85271(%rip) # 0x7ed8527f d: 7e e: 83 f8 01 cmp $0x1,%eax 11: 0f 85 c8 02 00 00 jne 0x2df 17: 48 83 7c 24 08 00 cmpq $0x0,0x8(%rsp) 1d: 74 01 je 0x20 1f: fb sti 20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 27: fc ff df * 2a: 48 01 c3 add %rax,%rbx <-- trapping instruction 2d: 48 c7 03 00 00 00 00 movq $0x0,(%rbx) 34: 48 c7 43 08 00 00 00 movq $0x0,0x8(%rbx) 3b: 00 3c: 48 rex.W 3d: 8b .byte 0x8b 3e: 84 .byte 0x84 3f: 24 .byte 0x24