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
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: 4025 Comm: syz-executor.4 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
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
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
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
Buffer I/O error on dev sr0, logical block 1, async page read
RSP: 0018:ffff888017ac7b00 EFLAGS: 00010012
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc9000685d000
RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191
RBP: ffff888017ac7d70 R08: ffff88806ce31340 R09: ffffe8ffffc166d8
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806ce31340 R15: dffffc0000000000
FS: 00007fa7c4d9c700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020005880 CR3: 000000001401e000 CR4: 0000000000350ef0
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
Call Trace:
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
perf_trace_run_bpf_submit+0xef/0x180
perf_trace_x86_fpu+0x38f/0x560
trace_x86_fpu_regs_activated+0xe6/0x180
switch_fpu_return+0xc8/0x190
do_syscall_64+0x323/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa7c7826b19
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:00007fa7c4d9c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: 0000000000000004 RBX: 00007fa7c7939f60 RCX: 00007fa7c7826b19
RDX: 0000000000202080 RSI: 00000000200000c0 RDI: ffffffffffffff9c
RBP: 00007fa7c7880f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc6e20f3df R14: 00007fa7c4d9c300 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:ffff888017ac7b00 EFLAGS: 00010012
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc9000685d000
RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191
RBP: ffff888017ac7d70 R08: ffff88806ce31340 R09: ffffe8ffffc166d8
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806ce31340 R15: dffffc0000000000
FS: 00007fa7c4d9c700(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020005880 CR3: 000000001401e000 CR4: 0000000000350ef0
note: syz-executor.4[4025] exited with irqs disabled
note: syz-executor.4[4025] exited with preempt_count 1
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
kmemleak: Found object by alias at 0x607f1a6396dc
CPU: 1 UID: 0 PID: 4021 Comm: syz-executor.2 Tainted: G D W 6.17.0-rc3-next-20250829 #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: 0033:0x7f4250ad0b19
Code: Unable to access opcode bytes at 0x7f4250ad0aef.
RSP: 002b:00007ffdb22d3528 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007f4250ad0b19
RDX: 00007f4250a8372b RSI: ffffffffffffffbc RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000001b2cf27d74 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffdb22d3610
kmemleak: Object (percpu) 0x607f1a6396d8 (size 8):
kmemleak: comm "syz-executor.0", pid 4038, jiffies 4294825102
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 0xdffffc0000000032: 0000 [#2] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197]
CPU: 1 UID: 0 PID: 4045 Comm: syz-executor.6 Tainted: G D W 6.17.0-rc3-next-20250829 #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:ffff88806cf08a80 EFLAGS: 00010012
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: 0000000000000002
RDX: ffff88800ce7b700 RSI: ffffffff818995b7 RDI: 0000000000000191
RBP: ffff88806cf08cf0 R08: ffff88806cf31490 R09: ffffe8ffffd166d8
R10: 0000000000000000 R11: 000000000000002c R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806cf31490 R15: dffffc0000000000
FS: 000055555b7e7400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555b7e8c18 CR3: 000000000cd43000 CR4: 0000000000350ef0
Call Trace:
perf_trace_run_bpf_submit+0xef/0x180
perf_trace_lock_acquire+0x3c2/0x700
lock_acquire+0xc5/0x2f0
_raw_spin_lock_irqsave+0x3a/0x60
hrtimer_interrupt+0xd6/0x830
__sysvec_apic_timer_interrupt+0xbb/0x330
sysvec_apic_timer_interrupt+0x6b/0x80
asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:__sanitizer_cov_trace_cmp4+0x4/0x20
Code: d6 0f b7 f7 bf 02 00 00 00 e9 08 ff ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <48> 8b 0c 24 89 f2 89 fe bf 04 00 00 00 e9 da fe ff ff 66 2e 0f 1f
RSP: 0018:ffff888017767398 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 0000000000000004 RCX: ffffffff84ba7977
RDX: ffff88800ce7b700 RSI: 000000000000000c RDI: 0000000000000010
RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000000000
R10: 0000000000000002 R11: 000000000000002c R12: 0000000000000004
R13: 0000000000000002 R14: 0000000000000010 R15: 000000000000000c
get_regno.isra.0+0xd4/0x1e0
get_eff_addr_sib+0x3de/0x8c0
insn_get_addr_ref+0x738/0x940
get_kernel_gp_address+0x156/0x230
exc_general_protection+0x259/0x330
asm_exc_general_protection+0x26/0x30
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:ffff8880177677c0 EFLAGS: 00010212
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: 0000000000000002
RDX: ffff88800ce7b700 RSI: ffffffff818995b7 RDI: 0000000000000191
RBP: ffff888017767a30 R08: ffff88806cf31340 R09: ffffe8ffffd166d8
R10: 0000000000000000 R11: 000000000000002c R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806cf31340 R15: dffffc0000000000
perf_trace_run_bpf_submit+0xef/0x180
perf_trace_lock_acquire+0x3c2/0x700
lock_acquire+0xc5/0x2f0
futex_private_hash_put+0x5d/0x2d0
futex_hash_put+0x3f/0x50
futex_wake+0x1bb/0x540
do_futex+0x26d/0x370
__x64_sys_futex+0x1c9/0x4d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efc7b66bb19
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:00007ffd67c79d08 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007efc7b66bb19
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007efc7b77ef68
RBP: 00007efc7b77ef60 R08: 00007efc78be1700 R09: 0000000000000000
R10: 00007efc78be1700 R11: 0000000000000246 R12: 00007efc7b783048
R13: 00007ffd67c79e10 R14: 00007efc7b77ef60 R15: 0000000000026aa4
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:ffff888017ac7b00 EFLAGS: 00010012
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc9000685d000
RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191
RBP: ffff888017ac7d70 R08: ffff88806ce31340 R09: ffffe8ffffc166d8
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806ce31340 R15: dffffc0000000000
FS: 000055555b7e7400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555b7e8c18 CR3: 000000000cd43000 CR4: 0000000000350ef0
----------------
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