audit: type=1400 audit(1663675736.025:8): avc: denied { kernel } for pid=3869 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: possible circular locking dependency detected 6.0.0-rc6-next-20220920 #1 Not tainted ------------------------------------------------------ syz-executor.2/3870 is trying to acquire lock: ffffffff853faab8 ((console_sem).lock){-...}-{2:2}, at: down_trylock+0xe/0x70 but task is already holding lock: ffff888015558020 (&ctx->lock){-...}-{2:2}, at: event_function+0x182/0x3d0 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (&ctx->lock){-...}-{2:2}: _raw_spin_lock+0x2a/0x40 __perf_event_task_sched_out+0x53b/0x18d0 __schedule+0xedd/0x2470 schedule+0xda/0x1b0 futex_wait_queue+0xf5/0x1e0 futex_wait+0x28e/0x690 do_futex+0x2ff/0x380 __x64_sys_futex+0x1c6/0x4d0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd -> #2 (&rq->__lock){-.-.}-{2:2}: _raw_spin_lock_nested+0x30/0x40 raw_spin_rq_lock_nested+0x1e/0x30 task_fork_fair+0x63/0x4d0 sched_cgroup_fork+0x3d0/0x540 copy_process+0x4183/0x6e20 kernel_clone+0xe7/0x890 user_mode_thread+0xad/0xf0 rest_init+0x24/0x250 arch_call_rest_init+0xf/0x14 start_kernel+0x4c1/0x4e6 secondary_startup_64_no_verify+0xe0/0xeb -> #1 (&p->pi_lock){-.-.}-{2:2}: _raw_spin_lock_irqsave+0x39/0x60 try_to_wake_up+0xab/0x1930 up+0x75/0xb0 __up_console_sem+0x6e/0x80 console_unlock+0x46a/0x590 vprintk_emit+0x1bd/0x560 vprintk+0x84/0xa0 _printk+0xba/0xf1 kauditd_hold_skb.cold+0x3f/0x4e kauditd_send_queue+0x233/0x290 kauditd_thread+0x5da/0x9a0 kthread+0x2ed/0x3a0 ret_from_fork+0x22/0x30 -> #0 ((console_sem).lock){-...}-{2:2}: __lock_acquire+0x2a02/0x5e70 lock_acquire+0x1a2/0x530 _raw_spin_lock_irqsave+0x39/0x60 down_trylock+0xe/0x70 __down_trylock_console_sem+0x3b/0xd0 vprintk_emit+0x16b/0x560 vprintk+0x84/0xa0 _printk+0xba/0xf1 report_bug.cold+0x72/0xab handle_bug+0x3c/0x70 exc_invalid_op+0x14/0x50 asm_exc_invalid_op+0x16/0x20 perf_group_detach+0x99e/0x12f0 __perf_remove_from_context+0x71e/0xb20 event_function+0x297/0x3d0 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 futex_q_lock+0x2a/0x70 futex_wait_setup+0xe6/0x230 futex_wait+0x264/0x690 do_futex+0x2ff/0x380 __x64_sys_futex+0x1c6/0x4d0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd other info that might help us debug this: Chain exists of: (console_sem).lock --> &rq->__lock --> &ctx->lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&ctx->lock); lock(&rq->__lock); lock(&ctx->lock); lock((console_sem).lock); *** DEADLOCK *** 2 locks held by syz-executor.2/3870: #0: ffff88806cf3d160 (&cpuctx_lock){-...}-{2:2}, at: event_function+0x16f/0x3d0 #1: ffff888015558020 (&ctx->lock){-...}-{2:2}, at: event_function+0x182/0x3d0 stack backtrace: CPU: 1 PID: 3870 Comm: syz-executor.2 Not tainted 6.0.0-rc6-next-20220920 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: dump_stack_lvl+0x8b/0xb3 check_noncircular+0x263/0x2e0 __lock_acquire+0x2a02/0x5e70 lock_acquire+0x1a2/0x530 _raw_spin_lock_irqsave+0x39/0x60 down_trylock+0xe/0x70 __down_trylock_console_sem+0x3b/0xd0 vprintk_emit+0x16b/0x560 vprintk+0x84/0xa0 _printk+0xba/0xf1 report_bug.cold+0x72/0xab handle_bug+0x3c/0x70 exc_invalid_op+0x14/0x50 asm_exc_invalid_op+0x16/0x20 RIP: 0010:perf_group_detach+0x99e/0x12f0 Code: 85 d5 f8 ff ff e8 a2 59 ee ff 65 44 8b 25 16 b3 aa 7e 31 ff 44 89 e6 e8 40 56 ee ff 45 85 e4 0f 84 0a 05 00 00 e8 82 59 ee ff <0f> 0b e9 a9 f8 ff ff e8 76 59 ee ff 65 8b 1d eb b2 aa 7e 31 ff 89 RSP: 0018:ffff88806cf09e60 EFLAGS: 00010046 RAX: 0000000080010002 RBX: ffff8880405d85c8 RCX: 0000000000000000 RDX: ffff88801dfd1ac0 RSI: ffffffff8157c2be RDI: 0000000000000005 RBP: ffff8880405d85c8 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000000 R11: ffffffff865ae05b R12: 0000000000000000 R13: ffff8880405d8658 R14: ffff888015558000 R15: ffff8880405d85c8 __perf_remove_from_context+0x71e/0xb20 event_function+0x297/0x3d0 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:futex_q_lock+0x2a/0x70 Code: 41 54 55 53 48 89 fb e8 74 1b 0b 00 48 8d 7b 38 e8 cb ce ff ff be 04 00 00 00 48 89 c7 49 89 c4 e8 2b 8d 3d 00 f0 41 ff 04 24 <48> 8d 7b 30 49 8d 6c 24 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa RSP: 0018:ffff88801b4e7b08 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffff88801b4e7cc0 RCX: ffffffff813b00e5 RDX: ffffed10011178f1 RSI: 0000000000000004 RDI: ffff8880088bc780 RBP: ffff88801b4e7c30 R08: 0000000000000001 R09: ffff8880088bc783 R10: ffffed10011178f0 R11: 0000000000000001 R12: ffff8880088bc780 R13: ffffed100369cf86 R14: ffff88801b4e7cc0 R15: 0000000000000000 futex_wait_setup+0xe6/0x230 futex_wait+0x264/0x690 do_futex+0x2ff/0x380 __x64_sys_futex+0x1c6/0x4d0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f137a108b19 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:00007f137767e218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f137a21bf68 RCX: 00007f137a108b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f137a21bf68 RBP: 00007f137a21bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f137a21bf6c R13: 00007fff302365ef R14: 00007f137767e300 R15: 0000000000022000 WARNING: CPU: 1 PID: 3870 at kernel/events/core.c:2047 perf_group_detach+0x99e/0x12f0 Modules linked in: CPU: 1 PID: 3870 Comm: syz-executor.2 Not tainted 6.0.0-rc6-next-20220920 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:perf_group_detach+0x99e/0x12f0 Code: 85 d5 f8 ff ff e8 a2 59 ee ff 65 44 8b 25 16 b3 aa 7e 31 ff 44 89 e6 e8 40 56 ee ff 45 85 e4 0f 84 0a 05 00 00 e8 82 59 ee ff <0f> 0b e9 a9 f8 ff ff e8 76 59 ee ff 65 8b 1d eb b2 aa 7e 31 ff 89 RSP: 0018:ffff88806cf09e60 EFLAGS: 00010046 RAX: 0000000080010002 RBX: ffff8880405d85c8 RCX: 0000000000000000 RDX: ffff88801dfd1ac0 RSI: ffffffff8157c2be RDI: 0000000000000005 RBP: ffff8880405d85c8 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000000 R11: ffffffff865ae05b R12: 0000000000000000 R13: ffff8880405d8658 R14: ffff888015558000 R15: ffff8880405d85c8 FS: 00007f137767e700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff0b634c8e0 CR3: 000000000e0a6000 CR4: 0000000000350ee0 Call Trace: __perf_remove_from_context+0x71e/0xb20 event_function+0x297/0x3d0 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:futex_q_lock+0x2a/0x70 Code: 41 54 55 53 48 89 fb e8 74 1b 0b 00 48 8d 7b 38 e8 cb ce ff ff be 04 00 00 00 48 89 c7 49 89 c4 e8 2b 8d 3d 00 f0 41 ff 04 24 <48> 8d 7b 30 49 8d 6c 24 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa RSP: 0018:ffff88801b4e7b08 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffff88801b4e7cc0 RCX: ffffffff813b00e5 RDX: ffffed10011178f1 RSI: 0000000000000004 RDI: ffff8880088bc780 RBP: ffff88801b4e7c30 R08: 0000000000000001 R09: ffff8880088bc783 R10: ffffed10011178f0 R11: 0000000000000001 R12: ffff8880088bc780 R13: ffffed100369cf86 R14: ffff88801b4e7cc0 R15: 0000000000000000 futex_wait_setup+0xe6/0x230 futex_wait+0x264/0x690 do_futex+0x2ff/0x380 __x64_sys_futex+0x1c6/0x4d0 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f137a108b19 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:00007f137767e218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f137a21bf68 RCX: 00007f137a108b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f137a21bf68 RBP: 00007f137a21bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f137a21bf6c R13: 00007fff302365ef R14: 00007f137767e300 R15: 0000000000022000 irq event stamp: 776 hardirqs last enabled at (775): [] syscall_enter_from_user_mode+0x1d/0x50 hardirqs last disabled at (776): [] sysvec_call_function_single+0xb/0xc0 softirqs last enabled at (630): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (621): [] __irq_exit_rcu+0x11b/0x180 ---[ end trace 0000000000000000 ]--- loop3: detected capacity change from 0 to 512 EXT4-fs (loop3): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop3): unmounting filesystem. loop3: detected capacity change from 0 to 512 EXT4-fs (loop3): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop3): unmounting filesystem. loop3: detected capacity change from 0 to 512 EXT4-fs (loop3): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop3): unmounting filesystem. loop3: detected capacity change from 0 to 512 capability: warning: `syz-executor.4' uses deprecated v2 capabilities in a way that may be insecure EXT4-fs (loop3): mounted filesystem without journal. Quota mode: none. EXT4-fs (loop3): unmounting filesystem. 9pnet_fd: p9_fd_create_tcp (4077): problem connecting socket to 127.0.0.1 9pnet_fd: p9_fd_create_tcp (4090): problem connecting socket to 127.0.0.1 9pnet_fd: p9_fd_create_tcp (4110): problem connecting socket to 127.0.0.1 9pnet_fd: p9_fd_create_tcp (4132): problem connecting socket to 127.0.0.1 hrtimer: interrupt took 19236 ns loop4: detected capacity change from 0 to 256 FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 3 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 1 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 1, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 2 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 2, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 3 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 3, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 4 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 4, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 5 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 5, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 6 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 6, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer I/O error, dev sr0, sector 7 op 0x0:(READ) flags 0x0 phys_seg 1 prio class 2 Buffer I/O error on dev sr0, logical block 7, async page read FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 4 prio class 2 sr 1:0:0:0: [sr0] tag#0 unaligned transfer Buffer I/O error on dev sr0, logical block 0, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer Buffer I/O error on dev sr0, logical block 1, async page read sr 1:0:0:0: [sr0] tag#0 unaligned transfer loop4: detected capacity change from 0 to 256 FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) blktrace: Concurrent blktraces are not allowed on sg0 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) loop4: detected capacity change from 0 to 256 FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) loop4: detected capacity change from 0 to 256 FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 01 00 sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 01 00 00 01 00 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 02 00 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer sr 1:0:0:0: [sr0] tag#0 unaligned transfer syz-executor.6 (4367) used greatest stack depth: 23896 bytes left ---------------- Code disassembly (best guess): 0: 41 54 push %r12 2: 55 push %rbp 3: 53 push %rbx 4: 48 89 fb mov %rdi,%rbx 7: e8 74 1b 0b 00 callq 0xb1b80 c: 48 8d 7b 38 lea 0x38(%rbx),%rdi 10: e8 cb ce ff ff callq 0xffffcee0 15: be 04 00 00 00 mov $0x4,%esi 1a: 48 89 c7 mov %rax,%rdi 1d: 49 89 c4 mov %rax,%r12 20: e8 2b 8d 3d 00 callq 0x3d8d50 25: f0 41 ff 04 24 lock incl (%r12) * 2a: 48 8d 7b 30 lea 0x30(%rbx),%rdi <-- trapping instruction 2e: 49 8d 6c 24 08 lea 0x8(%r12),%rbp 33: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 3a: fc ff df 3d: 48 89 fa mov %rdi,%rdx