program syz-executor.0 is using a deprecated SCSI ioctl, please convert it to SG_IO
==================================================================
BUG: KASAN: global-out-of-bounds in nsproxy_free+0x57c/0x5a0
Read of size 8 at addr ffffffff84e81750 by task syz-executor.4/4157
CPU: 0 UID: 0 PID: 4157 Comm: syz-executor.4 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
Call Trace:
dump_stack_lvl+0xca/0x120
print_report+0xcb/0x610
kasan_report+0xca/0x100
nsproxy_free+0x57c/0x5a0
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: 0033:0x7f5c82f9cb19
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:00007f5c804f1188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f5c830b0020 RCX: 00007f5c82f9cb19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020005880
RBP: 00007f5c82ff6f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffdd13c06f R14: 00007f5c804f1300 R15: 0000000000022000
The buggy address belongs to the variable:
sugov_group+0x390/0xa60
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4e81
flags: 0x100000000002000(reserved|node=0|zone=1)
raw: 0100000000002000 ffffea000013a048 ffffea000013a048 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffffffff84e81600: f9 f9 f9 f9 07 f9 f9 f9 f9 f9 f9 f9 00 05 f9 f9
ffffffff84e81680: f9 f9 f9 f9 02 f9 f9 f9 f9 f9 f9 f9 00 07 f9 f9
>ffffffff84e81700: f9 f9 f9 f9 00 00 01 f9 f9 f9 f9 f9 00 00 06 f9
^
ffffffff84e81780: f9 f9 f9 f9 00 00 00 f9 f9 f9 f9 f9 00 00 07 f9
ffffffff84e81800: f9 f9 f9 f9 00 00 00 f9 f9 f9 f9 f9 00 00 04 f9
==================================================================
Oops: general protection fault, probably for non-canonical address 0xdffffc0000200046: 0000 [#1] SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x0000000001000230-0x0000000001000237]
CPU: 0 UID: 0 PID: 4157 Comm: syz-executor.4 Tainted: G B 6.18.0-rc5-next-20251114 #1 PREEMPT(voluntary)
Tainted: [B]=BAD_PAGE
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:ffff88804b0e79f8 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000a051000
RDX: 0000000000200046 RSI: ffffffff8144dc85 RDI: 0000000001000230
RBP: ffff88801ea32958 R08: 0000000000000001 R09: fffffbfff0f5bca0
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000001000200
R13: ffff888019d2cd14 R14: ffff88801cf68820 R15: ffff888015995bb8
FS: 00007f5c804f1700(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d128000 CR3: 000000001e4bf000 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: 0033:0x7f5c82f9cb19
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:00007f5c804f1188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3
RAX: ffffffffffffffda RBX: 00007f5c830b0020 RCX: 00007f5c82f9cb19
RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020005880
RBP: 00007f5c82ff6f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffdd13c06f R14: 00007f5c804f1300 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:ffff88804b0e79f8 EFLAGS: 00010212
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000a051000
RDX: 0000000000200046 RSI: ffffffff8144dc85 RDI: 0000000001000230
RBP: ffff88801ea32958 R08: 0000000000000001 R09: fffffbfff0f5bca0
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000001000200
R13: ffff888019d2cd14 R14: ffff88801cf68820 R15: ffff888015995bb8
FS: 00007f5c804f1700(0000) GS:ffff8880e538f000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d128000 CR3: 000000001e4bf000 CR4: 0000000000350ef0
9p: Bad value for 'rfdno'
=======================================================
WARNING: The mand mount option has been deprecated and
and is ignored by this kernel. Remove the mand
option from the mount to silence this warning.
=======================================================
tmpfs: Unknown parameter ''
----------------
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