Oops: general protection fault, probably for non-canonical address 0xdffffc0000000005: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]
CPU: 0 UID: 0 PID: 4221 Comm: syz-executor.5 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+0x13d/0x5a0
Code: 0f 85 40 04 00 00 4c 8b 65 30 4d 85 e4 74 41 e8 c9 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 30 04 00 00 49 8b 5c 24 30 bf 08 00 00 00 48 89
RSP: 0018:ffff88801f3cf9f8 EFLAGS: 00010217
RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90007612000
RDX: 0000000000000005 RSI: ffffffff8144dc17 RDI: 000000000000002f
RBP: ffff88800cda3c98 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ed57 R11: 0000000000000001 R12: ffffffffffffffff
R13: ffff88800e008a3c R14: ffff888016d41450 R15: ffff8880169f5bb8
FS: 00007fc2e5db5700(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff547f31000 CR3: 0000000017085000 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: 0033:0x7fc2e8881b19
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:00007fc2e5db5188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007fc2e89950e0 RCX: 00007fc2e8881b19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020005880
RBP: 00007fc2e88dbf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc7cecc01f R14: 00007fc2e5db5300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:nsproxy_free+0x13d/0x5a0
Code: 0f 85 40 04 00 00 4c 8b 65 30 4d 85 e4 74 41 e8 c9 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 30 04 00 00 49 8b 5c 24 30 bf 08 00 00 00 48 89
RSP: 0018:ffff88801f3cf9f8 EFLAGS: 00010217
RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90007612000
RDX: 0000000000000005 RSI: ffffffff8144dc17 RDI: 000000000000002f
RBP: ffff88800cda3c98 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ed57 R11: 0000000000000001 R12: ffffffffffffffff
R13: ffff88800e008a3c R14: ffff888016d41450 R15: ffff8880169f5bb8
FS: 00007fc2e5db5700(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff547f31000 CR3: 0000000017085000 CR4: 0000000000350ef0
Oops: general protection fault, probably for non-canonical address 0xdffffc000000002e: 0000 [#2] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000170-0x0000000000000177]
CPU: 1 UID: 0 PID: 4182 Comm: syz-executor.6 Tainted: G D 6.18.0-rc5-next-20251114 #1 PREEMPT(voluntary)
Tainted: [D]=DIE
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_free+0x28a/0x5a0
Code: 02 00 00 4c 8b 65 28 4d 85 e4 74 43 e8 7f 56 30 00 49 8d bc 24 78 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 f7 02 00 00 49 8b 9c 24 78 01 00 00 bf 08 00 00
RSP: 0018:ffff88801c0d79f8 EFLAGS: 00010217
RAX: dffffc0000000000 RBX: 0000000000000002 RCX: ffffc9000b632000
RDX: 000000000000002e RSI: ffffffff8144dd61 RDI: 0000000000000174
RBP: ffff88800974ff08 R08: 0000000000000001 R09: ffffed1003b675c3
R10: 0000000000000002 R11: 0000000000000000 R12: fffffffffffffffc
R13: ffff88801db3ae1c R14: ffffffff85cfdf20 R15: ffff8880162b3ff8
FS: 00007ff31dda5700(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffefc9c3fb8 CR3: 000000000b767000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
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: 0033:0x7ff32082fb19
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:00007ff31dda5188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007ff320942f60 RCX: 00007ff32082fb19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020000500
RBP: 00007ff320889f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffdf66ea66f R14: 00007ff31dda5300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:nsproxy_free+0x13d/0x5a0
Code: 0f 85 40 04 00 00 4c 8b 65 30 4d 85 e4 74 41 e8 c9 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 30 04 00 00 49 8b 5c 24 30 bf 08 00 00 00 48 89
RSP: 0018:ffff88801f3cf9f8 EFLAGS: 00010217
RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90007612000
RDX: 0000000000000005 RSI: ffffffff8144dc17 RDI: 000000000000002f
RBP: ffff88800cda3c98 R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ed57 R11: 0000000000000001 R12: ffffffffffffffff
R13: ffff88800e008a3c R14: ffff888016d41450 R15: ffff8880169f5bb8
FS: 00007ff31dda5700(0000) GS:ffff8880e548f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffefc9c3fb8 CR3: 000000000b767000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
program syz-executor.4 is using a deprecated SCSI ioctl, please convert it to SG_IO
program syz-executor.4 is using a deprecated SCSI ioctl, please convert it to SG_IO
isofs_fill_super: bread failed, dev=loop7, iso_blknum=16, block=32
program syz-executor.4 is using a deprecated SCSI ioctl, please convert it to SG_IO
isofs_fill_super: bread failed, dev=loop7, iso_blknum=16, block=32
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
loop4: detected capacity change from 0 to 184
9p: Invalid gid '0x00000000ffffffff'
UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
misc raw-gadget: fail, usb_gadget_register_driver returned -16
FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)
----------------
Code disassembly (best guess):
0: 0f 85 40 04 00 00 jne 0x446
6: 4c 8b 65 30 mov 0x30(%rbp),%r12
a: 4d 85 e4 test %r12,%r12
d: 74 41 je 0x50
f: e8 c9 57 30 00 callq 0x3057dd
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 30 04 00 00 jne 0x464
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