FAT-fs (loop5): bogus number of reserved sectors FAT-fs (loop5): Can't find a valid FAT filesystem ------------[ cut here ]------------ percpu ref (blkg_release) <= 0 (-262782771304191) after switching to atomic WARNING: lib/percpu-refcount.c:197 at percpu_ref_switch_to_atomic_rcu+0x3cc/0x480, CPU#1: systemd-udevd/112 Modules linked in: CPU: 1 UID: 0 PID: 112 Comm: systemd-udevd 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:percpu_ref_switch_to_atomic_rcu+0x3cc/0x480 Code: 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 9e 00 00 00 49 8b 75 e8 48 c7 c7 80 97 e2 84 e8 75 c5 e9 fe 90 <0f> 0b 90 90 e9 2b ff ff ff e8 f6 de 5f ff e9 9e fe ff ff e8 7c df RSP: 0018:ffff88806cf08e20 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8139de70 RDX: ffff888015c1d280 RSI: ffffffff8139de7e RDI: 0000000000000001 RBP: 7fff11001e436900 R08: 0000000000000001 R09: ffffed100d9e4801 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88800eac1100 R13: ffff88800eac1120 R14: 0000000000000002 R15: 0000000000000003 FS: 00007fe9260d68c0(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0d8d5648e0 CR3: 000000000dc21000 CR4: 0000000000350ef0 Call Trace: rcu_core+0x7c8/0x1800 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x80 Code: 4a 03 48 c7 c0 f4 ff ff ff eb 92 0f 1f 80 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 34 24 <65> 48 8b 15 88 48 10 06 65 8b 05 99 48 10 06 a9 00 01 ff 00 74 27 RSP: 0018:ffff88800f8ef6b8 EFLAGS: 00000293 RAX: 0000000000000000 RBX: 8400000017cb5025 RCX: ffffffff819e529d RDX: ffff888015c1d280 RSI: ffffffff819e5cfc RDI: 0000000000000007 RBP: 0000000000100073 R08: 0000000000000000 R09: fffff940000be5a8 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffffea00005f2d40 R14: ffffea00005f2d40 R15: dffffc0000000000 copy_page_range+0x29dc/0x5140 dup_mmap+0xd2f/0x1d10 copy_process+0x3ad5/0x73c0 kernel_clone+0xea/0x7f0 __do_sys_clone+0xce/0x120 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe9265624bb Code: ed 0f 85 f8 00 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 91 00 00 00 41 89 c5 85 c0 0f 85 9e 00 00 RSP: 002b:00007ffe42ae48c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fe9265624bb RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000000 R08: 0000000000000000 R09: 00007fe9260d68c0 R10: 00007fe9260d6b90 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe42ae4990 R14: 0000000000000000 R15: 0000000000000000 irq event stamp: 667180 hardirqs last enabled at (667188): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (667197): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (666322): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (666421): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- percpu_ref_switch_to_atomic_rcu: percpu_ref_switch_to_atomic_rcu(): percpu_ref underflow slab kmalloc-64 start ffff88800eac1100 pointer offset 0 size 64 kmemleak: Found object by alias at 0x607f1a63990c CPU: 1 UID: 0 PID: 4056 Comm: syz-executor.0 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 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: 0033:0x7f26e97dbb19 Code: Unable to access opcode bytes at 0x7f26e97dbaef. RSP: 002b:00007f26e6d51218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007f26e98eef68 RCX: 00007f26e97dbb19 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f26e98eef6c RBP: 00007f26e98eef60 R08: 0000000000000009 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f26e98eef6c R13: 00007ffeea6af06f R14: 00007f26e6d51300 R15: 0000000000022000 kmemleak: Object (percpu) 0x607f1a639908 (size 8): kmemleak: comm "syz-executor.6", pid 4042, jiffies 4294824936 kmemleak: min_count = 1 kmemleak: count = 0 kmemleak: flags = 0x21 kmemleak: checksum = 0 kmemleak: backtrace: pcpu_alloc_noprof+0x87a/0x1170 percpu_ref_init+0x37/0x400 blkg_alloc+0xe9/0x7d0 blkcg_init_disk+0x51/0x4d0 __alloc_disk_node+0x2a1/0x650 __blk_mq_alloc_disk+0x8d/0x120 loop_add+0x494/0xb60 loop_control_ioctl+0x13b/0x640 __x64_sys_ioctl+0x18f/0x210 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f kmemleak: Found object by alias at 0x607f1a638e3c CPU: 0 UID: 0 PID: 4032 Comm: syz-executor.3 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 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: 0033:0x7fe30f47bb19 Code: Unable to access opcode bytes at 0x7fe30f47baef. RSP: 002b:00007ffd31980e38 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007fe30f47bb19 RDX: 00007fe30f42e72b RSI: ffffffffffffffbc RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000001b2cd23ccc R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffd31980f20 kmemleak: Object (percpu) 0x607f1a638e38 (size 8): kmemleak: comm "syz-executor.1", pid 4041, jiffies 4294824810 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 kmemleak: Found object by alias at 0x607f1a638e24 CPU: 0 UID: 0 PID: 4035 Comm: syz-executor.2 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 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: 0033:0x7efc575bbb19 Code: Unable to access opcode bytes at 0x7efc575bbaef. RSP: 002b:00007fff19def708 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 000000000000001e RCX: 00007efc575bbb19 RDX: 00007efc5756e72b RSI: ffffffffffffffbc RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 0000000000000001 R14: 0000000000000001 R15: 00007fff19def7f0 kmemleak: Object (percpu) 0x607f1a638e20 (size 8): kmemleak: comm "syz-executor.6", pid 4042, jiffies 4294824933 kmemleak: min_count = 1 kmemleak: count = 0 kmemleak: flags = 0x21 kmemleak: checksum = 0 kmemleak: backtrace: pcpu_alloc_noprof+0x87a/0x1170 percpu_ref_init+0x37/0x400 blk_alloc_queue+0x571/0x750 blk_mq_alloc_queue+0x170/0x280 __blk_mq_alloc_disk+0x2a/0x120 loop_add+0x494/0xb60 loop_control_ioctl+0x13b/0x640 __x64_sys_ioctl+0x18f/0x210 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197] CPU: 1 UID: 16877 PID: 4063 Comm: syz-executor.5 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 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:ffff88801686f8c0 EFLAGS: 00010212 RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc9000b272000 RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191 RBP: ffff88801686fb30 R08: ffff88806cf31340 R09: ffffe8ffffd15e38 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: 000000000000002c R14: ffff88806cf31340 R15: dffffc0000000000 FS: 00007f839cd9c700(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe30f58f018 CR3: 000000001bf2c000 CR4: 0000000000350ef0 Call Trace: perf_trace_run_bpf_submit+0xef/0x180 perf_trace_lock+0x337/0x5d0 lock_release+0x1ab/0x290 cgroup_sk_alloc+0x7e3/0xa40 sk_alloc+0x2aa/0xbd0 __netlink_create+0x5d/0x280 netlink_create+0x3ad/0x620 __sock_create+0x369/0x810 __sys_socket+0x145/0x260 __x64_sys_socket+0x73/0xb0 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f839f868b19 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:00007f839cd9c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f839f97c0e0 RCX: 00007f839f868b19 RDX: 0000000000000006 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 00007f839f8c2f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc5a9e26bf R14: 00007f839cd9c300 R15: 0000000000022000 Modules linked in: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#2] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197] CPU: 0 UID: 0 PID: 4067 Comm: syz-executor.7 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:ffff888048bdf800 EFLAGS: 00010212 RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: 0000000000000002 RDX: ffff888016a21b80 RSI: ffffffff818995b7 RDI: 0000000000000191 RBP: ffff888048bdfa70 R08: ffff88806ce31340 R09: ffffe8ffffc15e38 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: 000000000000002c R14: ffff88806ce31340 R15: dffffc0000000000 FS: 0000555560b28400(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555560b29c18 CR3: 000000000e0e5000 CR4: 0000000000350ef0 Call Trace: perf_trace_run_bpf_submit+0xef/0x180 perf_trace_lock+0x337/0x5d0 lock_release+0x1ab/0x290 futex_ref_get+0x119/0x300 futex_hash+0x70/0x390 futex_wake+0x143/0x540 do_futex+0x26d/0x370 __x64_sys_futex+0x1c9/0x4d0 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8f90750b19 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:00007ffe549a40a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8f90750b19 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f8f90863f68 RBP: 00007f8f90863f60 R08: 00007f8f8dcc6700 R09: 0000000000000000 R10: 00007f8f8dcc6700 R11: 0000000000000246 R12: 00007f8f90868070 R13: 00007ffe549a41b0 R14: 00007f8f90863f60 R15: 0000000000026a3f Modules linked in: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#3] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197] CPU: 1 UID: 16877 PID: 4063 Comm: syz-executor.5 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: ffff8880469d0000 RSI: ffffffff818995b7 RDI: 0000000000000191 RBP: ffff88806cf08cf0 R08: ffff88806cf31490 R09: ffffe8ffffd15e38 R10: 0000000000000000 R11: ffff88806cf37018 R12: dffffc0000000000 R13: 0000000000000024 R14: ffff88806cf31490 R15: dffffc0000000000 FS: 00007f839cd9c700(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe30f58f018 CR3: 000000001bf2c000 CR4: 0000000000350ef0 Call Trace: perf_trace_run_bpf_submit+0xef/0x180 perf_trace_lock+0x337/0x5d0 lock_release+0x1ab/0x290 _raw_spin_unlock+0x16/0x40 sched_ttwu_pending+0x2e0/0x4a0 __flush_smp_call_function_queue+0x434/0x740 __sysvec_call_function_single+0x6d/0x370 sysvec_call_function_single+0xa1/0xc0 asm_sysvec_call_function_single+0x1a/0x20 RIP: 0010:oops_exit+0x0/0x50 Code: f1 39 00 be ff ff ff ff 48 c7 c7 50 ac 43 86 e8 c6 0f f9 ff 5b e9 20 f1 39 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 53 e8 06 f1 39 00 8b 1d c0 ed 4e 06 31 ff 89 de e8 27 RSP: 0018:ffff88801686f750 EFLAGS: 00000202 RAX: 000000000002df6d RBX: 0000000000000212 RCX: ffffc9000b272000 RDX: 0000000000040000 RSI: ffffffff812a3dca RDI: 0000000000000007 RBP: 000000000000000b R08: 0000000000000001 R09: fffffbfff0f11c90 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801686f818 R13: 0000000000000000 R14: dffffc0000000032 R15: 0000000000000000 oops_end+0x65/0xe0 exc_general_protection+0x1a2/0x330 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:ffff88801686f8c0 EFLAGS: 00010212 RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc9000b272000 RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191 RBP: ffff88801686fb30 R08: ffff88806cf31340 R09: ffffe8ffffd15e38 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 R13: 000000000000002c R14: ffff88806cf31340 R15: dffffc0000000000 perf_trace_run_bpf_submit+0xef/0x180 perf_trace_lock+0x337/0x5d0 lock_release+0x1ab/0x290 cgroup_sk_alloc+0x7e3/0xa40 sk_alloc+0x2aa/0xbd0 __netlink_create+0x5d/0x280 netlink_create+0x3ad/0x620 __sock_create+0x369/0x810 __sys_socket+0x145/0x260 __x64_sys_socket+0x73/0xb0 do_syscall_64+0xbf/0x360 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f839f868b19 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:00007f839cd9c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f839f97c0e0 RCX: 00007f839f868b19 RDX: 0000000000000006 RSI: 0000000000000003 RDI: 0000000000000010 RBP: 00007f839f8c2f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc5a9e26bf R14: 00007f839cd9c300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#4] SMP KASAN NOPTI RIP: 0010:perf_tp_event+0x175/0xe70 KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197] 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 CPU: 0 UID: 0 PID: 4067 Comm: syz-executor.7 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary) RSP: 0018:ffff88801686f8c0 EFLAGS: 00010212 Tainted: [D]=DIE, [W]=WARN RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc9000b272000 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191 RIP: 0010:perf_tp_event+0x175/0xe70 RBP: ffff88801686fb30 R08: ffff88806cf31340 R09: ffffe8ffffd15e38 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 R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000 RSP: 0018:ffff88806ce08a80 EFLAGS: 00010012 R13: 000000000000002c R14: ffff88806cf31340 R15: dffffc0000000000 FS: 00007f839cd9c700(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000 RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: 0000000000000002 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 RDX: ffff888016a21b80 RSI: ffffffff818995b7 RDI: 0000000000000191 CR2: 00007fe30f58f018 CR3: 000000001bf2c000 CR4: 0000000000350ef0 RBP: ffff88806ce08cf0 R08: ffff88806ce31490 R09: ffffe8ffffc15e38 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 48 c7 c0 f4 ff ff ff mov $0xfffffffffffffff4,%rax 7: eb 92 jmp 0xffffff9b 9: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: f3 0f 1e fa endbr64 24: 48 8b 34 24 mov (%rsp),%rsi * 28: 65 48 8b 15 88 48 10 mov %gs:0x6104888(%rip),%rdx # 0x61048b8 <-- trapping instruction 2f: 06 30: 65 8b 05 99 48 10 06 mov %gs:0x6104899(%rip),%eax # 0x61048d0 37: a9 00 01 ff 00 test $0xff0100,%eax 3c: 74 27 je 0x65