ext4 filesystem being mounted at /syzkaller-testdir105373191/syzkaller.13Rgi4/7/file0 supports timestamps until 2038-01-19 (0x7fffffff) mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium loop6: detected capacity change from 0 to 64 Oops: general protection fault, probably for non-canonical address 0xe0c6746460c6780b: 0000 [#1] SMP KASAN NOPTI KASAN: maybe wild-memory-access in range [0x0633c3230633c058-0x0633c3230633c05f] CPU: 1 UID: 0 PID: 4110 Comm: syz-executor.1 Not tainted 6.18.0-rc5-next-20251114 #1 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:nsproxy_free+0x1ab/0x5a0 Code: 0f 85 b4 03 00 00 4c 8b 65 38 4d 85 e4 74 41 e8 5b 57 30 00 49 8d 7c 24 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b8 03 00 00 49 8b 5c 24 30 bf 08 00 00 00 48 89 RSP: 0018:ffff888049d479f8 EFLAGS: 00010213 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90000de0000 RDX: 00c6786460c6780b RSI: ffffffff8144dc85 RDI: 0633c3230633c05f RBP: ffff88800e206270 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff8664ed57 R11: 0000000000000001 R12: 0633c3230633c02f R13: ffff88801a0fde24 R14: ffff8880142b4820 R15: ffff888017783ff8 FS: 00007fbe0d036700(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f41642a8560 CR3: 000000000c1da000 CR4: 0000000000350ef0 Call Trace: create_new_namespaces+0x585/0x750 copy_namespaces+0x45c/0x580 copy_process+0x26e4/0x72a0 kernel_clone+0xea/0x7f0 __do_sys_clone3+0x1f5/0x280 do_syscall_64+0xbf/0x430 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbe0fb23b19 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:00007fbe0d036188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fbe0fc371a0 RCX: 00007fbe0fb23b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020005880 RBP: 00007fbe0fb7df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffde3ea4ddf R14: 00007fbe0d036300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:nsproxy_free+0x1ab/0x5a0 Code: 0f 85 b4 03 00 00 4c 8b 65 38 4d 85 e4 74 41 e8 5b 57 30 00 49 8d 7c 24 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b8 03 00 00 49 8b 5c 24 30 bf 08 00 00 00 48 89 RSP: 0018:ffff888049d479f8 EFLAGS: 00010213 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90000de0000 RDX: 00c6786460c6780b RSI: ffffffff8144dc85 RDI: 0633c3230633c05f RBP: ffff88800e206270 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff8664ed57 R11: 0000000000000001 R12: 0633c3230633c02f R13: ffff88801a0fde24 R14: ffff8880142b4820 R15: ffff888017783ff8 FS: 00007fbe0d036700(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f41642a8560 CR3: 000000000c1da000 CR4: 0000000000350ef0 EXT4-fs (loop7): unmounting filesystem 00000000-0000-0000-0000-000000000000. loop6: detected capacity change from 0 to 64 FAT-fs (loop6): bogus number of FAT structure FAT-fs (loop6): Can't find a valid FAT filesystem Bluetooth: hci0: Opcode 0x0c1a failed: -4 Bluetooth: hci0: Opcode 0x0406 failed: -4 Bluetooth: hci0: Opcode 0x0406 failed: -4 Bluetooth: hci2: Opcode 0x0c1a failed: -4 Bluetooth: hci2: Opcode 0x0406 failed: -4 Bluetooth: hci2: Opcode 0x0406 failed: -4 Bluetooth: hci1: Opcode 0x0c1a failed: -4 Bluetooth: hci1: Opcode 0x0406 failed: -4 Bluetooth: hci1: Opcode 0x0406 failed: -4 Bluetooth: hci3: Opcode 0x0c1a failed: -4 Bluetooth: hci3: Opcode 0x0406 failed: -4 Bluetooth: hci3: Opcode 0x0406 failed: -4 Bluetooth: hci4: Opcode 0x0c1a failed: -4 Bluetooth: hci4: Opcode 0x0406 failed: -4 Bluetooth: hci4: Opcode 0x0406 failed: -4 Bluetooth: hci5: Opcode 0x0c1a failed: -4 Bluetooth: hci5: Opcode 0x0406 failed: -4 Bluetooth: hci5: Opcode 0x0406 failed: -4 Bluetooth: hci6: Opcode 0x0c1a failed: -4 Bluetooth: hci6: Opcode 0x0406 failed: -4 Bluetooth: hci6: Opcode 0x0406 failed: -4 Bluetooth: hci7: Opcode 0x0c1a failed: -4 Bluetooth: hci7: Opcode 0x0406 failed: -4 Bluetooth: hci7: Opcode 0x0406 failed: -4 ---------------- Code disassembly (best guess): 0: 0f 85 b4 03 00 00 jne 0x3ba 6: 4c 8b 65 38 mov 0x38(%rbp),%r12 a: 4d 85 e4 test %r12,%r12 d: 74 41 je 0x50 f: e8 5b 57 30 00 callq 0x30576f 14: 49 8d 7c 24 30 lea 0x30(%r12),%rdi 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 b8 03 00 00 jne 0x3ec 34: 49 8b 5c 24 30 mov 0x30(%r12),%rbx 39: bf 08 00 00 00 mov $0x8,%edi 3e: 48 rex.W 3f: 89 .byte 0x89