Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197] CPU: 0 UID: 0 PID: 3923 Comm: syz-executor.2 Tainted: G W 6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary) kmemleak: Found object by alias at 0x607f1a631494 CPU: 1 UID: 0 PID: 3928 Comm: syz-executor.7 Tainted: G W 6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary) Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xca/0x120 __lookup_object+0x94/0xb0 delete_object_full+0x27/0x70 free_percpu+0x30/0x1160 futex_hash_free+0x38/0xc0 mmput+0x2d3/0x390 do_exit+0x79d/0x2970 do_group_exit+0xd3/0x2a0 get_signal+0x2315/0x2340 arch_do_signal_or_restart+0x80/0x790 exit_to_user_mode_loop+0x8b/0x110 do_syscall_64+0x2f7/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdabf593b19 Code: Unable to access opcode bytes at 0x7fdabf593aef. RSP: 002b:00007fdabcb09218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fdabf6a6f68 RCX: 00007fdabf593b19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fdabf6a6f68 RBP: 00007fdabf6a6f60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdabf6a6f6c R13: 00007fff6caabadf R14: 00007fdabcb09300 R15: 0000000000022000 kmemleak: Object (percpu) 0x607f1a631490 (size 8): kmemleak: comm "syz-executor.4", pid 3933, jiffies 4294786874 kmemleak: min_count = 1 kmemleak: count = 0 kmemleak: flags = 0x21 kmemleak: checksum = 0 kmemleak: backtrace: pcpu_alloc_noprof+0x87a/0x1170 perf_trace_event_init+0x366/0xa10 perf_trace_init+0x1a4/0x2f0 perf_tp_event_init+0xa6/0x120 perf_try_init_event+0x140/0x9f0 perf_event_alloc.part.0+0x118e/0x45f0 __do_sys_perf_event_open+0x719/0x2c20 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f Tainted: [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0018:ffff8880450a6a80 EFLAGS: 00010012 RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90004206000 RDX: 0000000000040000 RSI: ffffffff8189a4e7 RDI: 0000000000000191 RBP: ffff8880450a6cf0 R08: ffff88806ce31340 R09: ffffe8ffffc09490 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000014 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00007f02a39dd700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7f88917018 CR3: 000000000a012000 CR4: 0000000000350ef0 Call Trace: perf_trace_run_bpf_submit+0xef/0x180 perf_trace_preemptirq_template+0x259/0x430 trace_irq_disable.constprop.0+0xa6/0x100 _raw_spin_lock_irqsave+0x53/0x60 folio_lruvec_lock_irqsave+0x23/0x70 folio_batch_move_lru+0x1c2/0x350 lru_add_drain_cpu+0x479/0x6e0 lru_add_drain+0xcc/0x390 __folio_batch_release+0x65/0xb0 mpage_prepare_extent_to_map+0xf53/0x12b0 ext4_do_writepages+0xbaa/0x38b0 ext4_writepages+0x369/0x7a0 do_writepages+0x244/0x5c0 filemap_fdatawrite_wbc+0x10b/0x150 __filemap_fdatawrite_range+0xb9/0x100 filemap_write_and_wait_range+0xa5/0x130 ext4_file_write_iter+0x1066/0x1990 iter_file_splice_write+0xa3b/0x11f0 direct_splice_actor+0x192/0x7b0 splice_direct_to_actor+0x347/0x9d0 do_splice_direct+0x179/0x250 do_sendfile+0xa8e/0xdc0 __x64_sys_sendfile64+0x1d3/0x210 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f02a6467b19 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:00007f02a39dd188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f02a657af60 RCX: 00007f02a6467b19 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006 RBP: 00007f02a64c1f6d R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc1b7f76df R14: 00007f02a39dd300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0018:ffff8880450a6a80 EFLAGS: 00010012 RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90004206000 RDX: 0000000000040000 RSI: ffffffff8189a4e7 RDI: 0000000000000191 RBP: ffff8880450a6cf0 R08: ffff88806ce31340 R09: ffffe8ffffc09490 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000014 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00007f02a39dd700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7f88917018 CR3: 000000000a012000 CR4: 0000000000350ef0 note: syz-executor.2[3923] exited with irqs disabled note: syz-executor.2[3923] exited with preempt_count 2 ------------[ cut here ]------------ WARNING: kernel/exit.c:898 at do_exit+0x1c36/0x2970, CPU#0: syz-executor.2/3923 Modules linked in: CPU: 0 UID: 0 PID: 3923 Comm: syz-executor.2 Tainted: G D W 6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:do_exit+0x1c36/0x2970 Code: 96 0a 00 00 c7 43 18 00 00 00 00 e9 21 e6 ff ff e8 ef b3 38 00 bf 02 24 00 00 e8 f5 ab 0b 00 e9 41 ff ff ff e8 db b3 38 00 90 <0f> 0b 90 e9 87 e4 ff ff e8 cd b3 38 00 4c 89 e6 bf 05 06 00 00 e8 RSP: 0018:ffff8880450a7e40 EFLAGS: 00010246 RAX: 0000000000040000 RBX: 0000000000000200 RCX: ffffc90004206000 RDX: 0000000000040000 RSI: ffffffff813b42d5 RDI: ffff88800c0648e8 RBP: ffff88800c063700 R08: 0000000000000001 R09: fffffbfff0f126d8 R10: 0000000000000200 R11: 0000000000000001 R12: 000000000000000b R13: 0000000000002710 R14: dffffc0000000032 R15: 0000000000000000 FS: 00007f02a39dd700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7f88917018 CR3: 000000000a012000 CR4: 0000000000350ef0 Call Trace: make_task_dead+0x174/0x3b0 rewind_stack_and_make_dead+0x16/0x20 RIP: 0033:0x7f02a6467b19 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:00007f02a39dd188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f02a657af60 RCX: 00007f02a6467b19 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006 RBP: 00007f02a64c1f6d R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc1b7f76df R14: 00007f02a39dd300 R15: 0000000000022000 irq event stamp: 5252 hardirqs last enabled at (5251): [] _raw_spin_unlock_irqrestore+0x2c/0x50 hardirqs last disabled at (5252): [] _raw_spin_lock_irqsave+0x53/0x60 softirqs last enabled at (5240): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (5229): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- syz-executor.2 (3923) used greatest stack depth: 23168 bytes left kmemleak: Found object by alias at 0x607f1a631494 CPU: 0 UID: 0 PID: 3948 Comm: syz-executor.7 Tainted: G D W 6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xca/0x120 __lookup_object+0x94/0xb0 delete_object_full+0x27/0x70 free_percpu+0x30/0x1160 futex_hash_free+0x38/0xc0 mmput+0x2d3/0x390 do_exit+0x79d/0x2970 do_group_exit+0xd3/0x2a0 __x64_sys_exit_group+0x3e/0x50 x64_sys_call+0x18c5/0x18d0 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdabf593b19 Code: Unable to access opcode bytes at 0x7fdabf593aef. RSP: 002b:00007fff6caabd08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007fdabf593b19 RDX: 00007fdabf54672b RSI: ffffffffffffffbc RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000001b2d121628 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007fff6caabdf0 kmemleak: Object (percpu) 0x607f1a631490 (size 8): kmemleak: comm "syz-executor.0", pid 3946, jiffies 4294787858 kmemleak: min_count = 1 kmemleak: count = 0 kmemleak: flags = 0x21 kmemleak: checksum = 0 kmemleak: backtrace: pcpu_alloc_noprof+0x87a/0x1170 perf_trace_event_init+0x366/0xa10 perf_trace_init+0x1a4/0x2f0 perf_tp_event_init+0xa6/0x120 perf_try_init_event+0x140/0x9f0 perf_event_alloc.part.0+0x118e/0x45f0 __do_sys_perf_event_open+0x719/0x2c20 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f Oops: general protection fault, probably for non-canonical address 0xdffffc0000000031: 0000 [#2] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000188-0x000000000000018f] CPU: 0 UID: 0 PID: 3952 Comm: syz-executor.3 Tainted: G D W 6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0018:ffff888016707880 EFLAGS: 00010213 RAX: 0000000000000031 RBX: ffffffffffffff9f RCX: 0000000000000002 RDX: ffff888017629b80 RSI: ffffffff8189a4e7 RDI: 000000000000018f RBP: ffff888016707af0 R08: ffff88806ce31340 R09: ffffe8ffffc09490 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: 000000000000001c R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00005555659c0400(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d426000 CR3: 00000000438fd000 CR4: 0000000000350ef0 Call Trace: perf_trace_run_bpf_submit+0xef/0x180 perf_trace_contention_end+0x235/0x3e0 trace_contention_end+0xae/0x110 __mutex_lock+0x166/0x1020 perf_event_exit_task+0x46/0x510 do_exit+0x626/0x2970 do_group_exit+0xd3/0x2a0 __x64_sys_exit_group+0x3e/0x50 x64_sys_call+0x18c5/0x18d0 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f6025141b19 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:00007ffcafa26a18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f6025141b19 RDX: 00007f60250f472b RSI: ffffffffffffffbc RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000001b2d424b34 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffcafa26b00 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0018:ffff8880450a6a80 EFLAGS: 00010012 RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90004206000 RDX: 0000000000040000 RSI: ffffffff8189a4e7 RDI: 0000000000000191 RBP: ffff8880450a6cf0 R08: ffff88806ce31340 R09: ffffe8ffffc09490 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000014 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00005555659c0400(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d426000 CR3: 00000000438fd000 CR4: 0000000000350ef0 note: syz-executor.3[3952] exited with preempt_count 2 Fixing recursive fault but reboot is needed! BUG: scheduling while atomic: syz-executor.3/3952/0x00000000 INFO: lockdep is turned off. Modules linked in: CPU: 0 UID: 0 PID: 3952 Comm: syz-executor.3 Tainted: G D W 6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Call Trace: dump_stack_lvl+0xfa/0x120 __schedule_bug+0xb9/0x100 __schedule+0x24f3/0x3590 do_task_dead+0xdc/0x110 make_task_dead+0x373/0x3b0 rewind_stack_and_make_dead+0x16/0x20 RIP: 0033:0x7f6025141b19 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:00007ffcafa26a18 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f6025141b19 RDX: 00007f60250f472b RSI: ffffffffffffffbc RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000001b2d424b34 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffcafa26b00 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#3] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 UID: 0 PID: 3955 Comm: syz-executor.2 Tainted: G D W 6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary) Tainted: [D]=DIE, [W]=WARN Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:perf_trace_add+0x21b/0x340 Code: 00 0f 85 3a 01 00 00 4c 89 75 00 4d 85 ed 74 2a e8 da b2 f5 ff 49 8d 7d 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 df 00 00 00 4d 89 75 08 eb 03 45 31 e4 e8 ad b2 RSP: 0018:ffff88801b70ee00 EFLAGS: 00010057 RAX: dffffc0000000000 RBX: ffff888009648c80 RCX: ffffffff817e42fe RDX: 0000000000000000 RSI: ffffffff817e43d6 RDI: 0000000000000007 RBP: ffffe8ffffc09490 R08: ffffffff85ca4140 R09: ffffed10036e1e07 R10: 0000000000000000 R11: 1ffff1100d9c6f7b R12: 0000000000000000 R13: ffffffffffffffff R14: ffff888009648ce0 R15: ffff888009648d18 FS: 00007f02a39dd700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d426000 CR3: 0000000009fec000 CR4: 0000000000350ef0 Call Trace: event_sched_in+0x446/0xb60 merge_sched_in+0xb4d/0x1810 visit_groups_merge.constprop.0.isra.0+0x8d1/0x1150 ctx_sched_in+0x579/0x9b0 perf_event_sched_in+0x5d/0x90 __perf_event_task_sched_in+0x2ec/0x5e0 finish_task_switch.isra.0+0x410/0x840 __schedule+0xe86/0x3590 schedule+0xdb/0x390 io_schedule+0xbf/0x130 bit_wait_io+0x15/0xf0 __wait_on_bit+0x6a/0x1b0 out_of_line_wait_on_bit+0xd7/0x110 __wait_on_buffer+0x63/0x70 ext4_block_write_begin+0x632/0xcd0 ext4_da_write_begin+0x4d5/0xb40 generic_perform_write+0x392/0x810 ext4_buffered_write_iter+0x11a/0x430 ext4_file_write_iter+0xff6/0x1990 iter_file_splice_write+0xa3b/0x11f0 direct_splice_actor+0x192/0x7b0 splice_direct_to_actor+0x347/0x9d0 do_splice_direct+0x179/0x250 do_sendfile+0xa8e/0xdc0 __x64_sys_sendfile64+0x1d3/0x210 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f02a6467b19 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:00007f02a39dd188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f02a657af60 RCX: 00007f02a6467b19 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006 RBP: 00007f02a64c1f6d R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000fdef R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc1b7f76df R14: 00007f02a39dd300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:perf_tp_event+0x175/0xe70 Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01 RSP: 0018:ffff8880450a6a80 EFLAGS: 00010012 RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90004206000 RDX: 0000000000040000 RSI: ffffffff8189a4e7 RDI: 0000000000000191 RBP: ffff8880450a6cf0 R08: ffff88806ce31340 R09: ffffe8ffffc09490 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: 0000000000000014 R14: ffff88806ce31340 R15: dffffc0000000000 FS: 00007f02a39dd700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d426000 CR3: 0000000009fec000 CR4: 0000000000350ef0 note: syz-executor.2[3955] exited with irqs disabled ---------------- Code disassembly (best guess), 1 bytes skipped: 0: df 48 89 fisttps -0x77(%rax) 3: 85 a8 fd ff ff 48 test %ebp,0x48fffffd(%rax) 9: c1 e8 03 shr $0x3,%eax c: 4c 01 e0 add %r12,%rax f: 48 89 85 c8 fd ff ff mov %rax,-0x238(%rbp) 16: e8 c9 51 ea ff callq 0xffea51e4 1b: 48 8d bb f0 01 00 00 lea 0x1f0(%rbx),%rdi 22: 48 89 f8 mov %rdi,%rax 25: 48 c1 e8 03 shr $0x3,%rax * 29: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 74 08 je 0x3a 32: 3c 03 cmp $0x3,%al 34: 0f 8e c5 0b 00 00 jle 0xbff 3a: 44 rex.R 3b: 8b .byte 0x8b 3c: ab stos %eax,%es:(%rdi) 3d: f0 lock 3e: 01 .byte 0x1