Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf]
CPU: 0 UID: 0 PID: 5869 Comm: syz-executor.3 Not tainted 6.18.0-rc5-next-20251112 #1 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
RSP: 0018:ffff888047447db0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000641f000
RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ca57 R11: 0000000000000001 R12: ffff888018d196c0
R13: ffff888018d19874 R14: ffffffff85cfbf20 R15: ffff888048832438
FS: 00007fc0c2451700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557ed11708 CR3: 000000000cc18000 CR4: 0000000000350ef0
Call Trace:
nsproxy_free+0xfa/0x5a0
create_new_namespaces+0x585/0x750
unshare_nsproxy_namespaces+0xc0/0x200
ksys_unshare+0x468/0xa10
__x64_sys_unshare+0x31/0x40
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc0c4edbb19
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:00007fc0c2451188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007fc0c4feef60 RCX: 00007fc0c4edbb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002c020600
RBP: 00007fc0c4f35f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffccbf719ff R14: 00007fc0c2451300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
RSP: 0018:ffff888047447db0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000641f000
RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ca57 R11: 0000000000000001 R12: ffff888018d196c0
R13: ffff888018d19874 R14: ffffffff85cfbf20 R15: ffff888048832438
FS: 00007fc0c2451700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055557ed11708 CR3: 000000000cc18000 CR4: 0000000000350ef0
Bluetooth: hci0: Opcode 0x0c03 failed: -4
Bluetooth: hci0: Opcode 0x0c03 failed: -4
netlink: 'syz-executor.0': attribute type 16 has an invalid length.
netlink: 'syz-executor.0': attribute type 16 has an invalid length.
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#2] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf]
CPU: 1 UID: 0 PID: 5906 Comm: syz-executor.3 Tainted: G D 6.18.0-rc5-next-20251112 #1 PREEMPT(voluntary)
Tainted: [D]=DIE
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
RSP: 0018:ffff888017eafdb0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000641f000
RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8664ca57 R11: 0000000000000000 R12: ffff88801e004e38
R13: ffff88801e004fec R14: ffffffff85cfbf20 R15: ffff888017c1dbb8
FS: 00007fc0c2451700(0000) GS:ffff8880e5497000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff1dfa2cb8 CR3: 000000000cef5000 CR4: 0000000000350ef0
Call Trace:
nsproxy_free+0xfa/0x5a0
create_new_namespaces+0x585/0x750
unshare_nsproxy_namespaces+0xc0/0x200
ksys_unshare+0x468/0xa10
__x64_sys_unshare+0x31/0x40
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc0c4edbb19
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:00007fc0c2451188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007fc0c4feef60 RCX: 00007fc0c4edbb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002c020600
RBP: 00007fc0c4f35f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffccbf719ff R14: 00007fc0c2451300 R15: 0000000000022000
Modules linked in:
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#3] SMP KASAN NOPTI
---[ end trace 0000000000000000 ]---
KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf]
RIP: 0010:put_pid_ns+0x30/0x80
CPU: 0 UID: 0 PID: 5909 Comm: syz-executor.2 Tainted: G D 6.18.0-rc5-next-20251112 #1 PREEMPT(voluntary)
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
Tainted: [D]=DIE
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RSP: 0018:ffff888047447db0 EFLAGS: 00010216
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000641f000
RSP: 0018:ffff88804814fdb0 EFLAGS: 00010216
RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc900007f1000
RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000001 R09: 0000000000000001
RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1009029fa7
R10: 0000000000000001 R11: 0000000000000000 R12: ffff888018d19f48
R10: ffffffff8664ca57 R11: 0000000000000001 R12: ffff888018d196c0
R13: ffff888018d1a0fc R14: ffffffff85cfbf20 R15: ffff888017c1bff8
FS: 00007f80e149d700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000
R13: ffff888018d19874 R14: ffffffff85cfbf20 R15: ffff888048832438
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
FS: 00007fc0c2451700(0000) GS:ffff8880e5497000(0000) knlGS:0000000000000000
CR2: 0000001b2d423000 CR3: 000000001ed9d000 CR4: 0000000000350ef0
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
Call Trace:
CR2: 00007fff1dfa2cb8 CR3: 000000000cef5000 CR4: 0000000000350ef0
nsproxy_free+0xfa/0x5a0
create_new_namespaces+0x585/0x750
unshare_nsproxy_namespaces+0xc0/0x200
ksys_unshare+0x468/0xa10
__x64_sys_unshare+0x31/0x40
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f80e3f27b19
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:00007f80e149d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f80e403af60 RCX: 00007f80e3f27b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002c020600
RBP: 00007f80e3f81f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff707392af R14: 00007f80e149d300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
RSP: 0018:ffff888047447db0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000641f000
RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ca57 R11: 0000000000000001 R12: ffff888018d196c0
R13: ffff888018d19874 R14: ffffffff85cfbf20 R15: ffff888048832438
FS: 00007f80e149d700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d423000 CR3: 000000001ed9d000 CR4: 0000000000350ef0
Bluetooth: hci0: Opcode 0x0c03 failed: -4
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#4] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf]
CPU: 1 UID: 0 PID: 5930 Comm: syz-executor.3 Tainted: G D 6.18.0-rc5-next-20251112 #1 PREEMPT(voluntary)
Tainted: [D]=DIE
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
RSP: 0018:ffff888048317db0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000641f000
RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8664ca57 R11: 0000000000000000 R12: ffff88801e0053e8
R13: ffff88801e00559c R14: ffffffff85cfbf20 R15: ffff88801703a438
FS: 00007fc0c2451700(0000) GS:ffff8880e5497000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d220000 CR3: 000000000dd70000 CR4: 0000000000350ef0
Call Trace:
nsproxy_free+0xfa/0x5a0
create_new_namespaces+0x585/0x750
unshare_nsproxy_namespaces+0xc0/0x200
ksys_unshare+0x468/0xa10
__x64_sys_unshare+0x31/0x40
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc0c4edbb19
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
netlink: 'syz-executor.0': attribute type 16 has an invalid length.
RSP: 002b:00007fc0c2451188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007fc0c4feef60 RCX: 00007fc0c4edbb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002c020600
RBP: 00007fc0c4f35f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffccbf719ff R14: 00007fc0c2451300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
RSP: 0018:ffff888047447db0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000641f000
RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ca57 R11: 0000000000000001 R12: ffff888018d196c0
R13: ffff888018d19874 R14: ffffffff85cfbf20 R15: ffff888048832438
FS: 00007fc0c2451700(0000) GS:ffff8880e5497000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d220000 CR3: 000000000dd70000 CR4: 0000000000350ef0
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#5] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf]
CPU: 0 UID: 0 PID: 5940 Comm: syz-executor.2 Tainted: G D 6.18.0-rc5-next-20251112 #1 PREEMPT(voluntary)
Tainted: [D]=DIE
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
RSP: 0018:ffff888047b57db0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc900007f1000
RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8664ca57 R11: 0000000000000000 R12: ffff888018d1a4f8
R13: ffff888018d1a6ac R14: ffffffff85cfbf20 R15: ffff888018f12438
FS: 00007f80e149d700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3e2eceb830 CR3: 000000000d973000 CR4: 0000000000350ef0
Call Trace:
nsproxy_free+0xfa/0x5a0
create_new_namespaces+0x585/0x750
unshare_nsproxy_namespaces+0xc0/0x200
ksys_unshare+0x468/0xa10
__x64_sys_unshare+0x31/0x40
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f80e3f27b19
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:00007f80e149d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f80e403af60 RCX: 00007f80e3f27b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002c020600
RBP: 00007f80e3f81f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff707392af R14: 00007f80e149d300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
RSP: 0018:ffff888047447db0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000641f000
RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ca57 R11: 0000000000000001 R12: ffff888018d196c0
R13: ffff888018d19874 R14: ffffffff85cfbf20 R15: ffff888048832438
FS: 00007f80e149d700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3e2eceb830 CR3: 000000000d973000 CR4: 0000000000350ef0
netlink: 'syz-executor.0': attribute type 16 has an invalid length.
Bluetooth: hci0: Opcode 0x0c03 failed: -4
netlink: 'syz-executor.0': attribute type 16 has an invalid length.
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#6] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf]
CPU: 1 UID: 0 PID: 5973 Comm: syz-executor.3 Tainted: G D 6.18.0-rc5-next-20251112 #1 PREEMPT(voluntary)
Tainted: [D]=DIE
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
RSP: 0018:ffff888048147db0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000641f000
RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8664ca57 R11: 0000000000000000 R12: ffff88801e0056c0
R13: ffff88801e005874 R14: ffffffff85cfbf20 R15: ffff888016bbdbb8
FS: 00007fc0c2451700(0000) GS:ffff8880e5497000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ce28000 CR3: 000000001eecb000 CR4: 0000000000350ef0
Call Trace:
nsproxy_free+0xfa/0x5a0
create_new_namespaces+0x585/0x750
unshare_nsproxy_namespaces+0xc0/0x200
ksys_unshare+0x468/0xa10
__x64_sys_unshare+0x31/0x40
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc0c4edbb19
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:00007fc0c2451188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007fc0c4feef60 RCX: 00007fc0c4edbb19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002c020600
RBP: 00007fc0c4f35f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffccbf719ff R14: 00007fc0c2451300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
RSP: 0018:ffff888047447db0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000641f000
RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ca57 R11: 0000000000000001 R12: ffff888018d196c0
R13: ffff888018d19874 R14: ffffffff85cfbf20 R15: ffff888048832438
FS: 00007fc0c2451700(0000) GS:ffff8880e5497000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ce28000 CR3: 000000001eecb000 CR4: 0000000000350ef0
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#7] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf]
CPU: 1 UID: 0 PID: 5979 Comm: syz-executor.2 Tainted: G D 6.18.0-rc5-next-20251112 #1 PREEMPT(voluntary)
Tainted: [D]=DIE
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
RSP: 0018:ffff888047a67db0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc900007f1000
RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8664ca57 R11: 0000000000000000 R12: ffff88801e005c70
R13: ffff88801e005e24 R14: ffffffff85cfbf20 R15: ffff888015980878
FS: 00007f80e149d700(0000) GS:ffff8880e5497000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ce28000 CR3: 000000000d2e9000 CR4: 0000000000350ef0
Call Trace:
nsproxy_free+0xfa/0x5a0
create_new_namespaces+0x585/0x750
unshare_nsproxy_namespaces+0xc0/0x200
ksys_unshare+0x468/0xa10
__x64_sys_unshare+0x31/0x40
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f80e3f27b19
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:00007f80e149d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f80e403af60 RCX: 00007f80e3f27b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000002c020600
RBP: 00007f80e3f81f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff707392af R14: 00007f80e149d300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:put_pid_ns+0x30/0x80
Code: 89 fd 53 e8 42 a0 03 00 48 85 ed 74 3d e8 38 a0 03 00 48 8d bd d0 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 35 48 8b 9d d0 00 00 00 bf 08 00 00 00 48 89 de e8
RSP: 0018:ffff888047447db0 EFLAGS: 00010216
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc9000641f000
RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba
RBP: ffffffffffffffea R08: 0000000000000001 R09: 0000000000000001
R10: ffffffff8664ca57 R11: 0000000000000001 R12: ffff888018d196c0
R13: ffff888018d19874 R14: ffffffff85cfbf20 R15: ffff888048832438
FS: 00007f80e149d700(0000) GS:ffff8880e5497000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ce28000 CR3: 000000000d2e9000 CR4: 0000000000350ef0
netlink: 'syz-executor.5': attribute type 16 has an invalid length.
Bluetooth: hci0: Opcode 0x0c03 failed: -4
netlink: 'syz-executor.5': attribute type 16 has an invalid length.
netlink: 'syz-executor.5': attribute type 16 has an invalid length.
__nla_validate_parse: 5 callbacks suppressed
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.7'.
----------------
Code disassembly (best guess):
0: 89 fd mov %edi,%ebp
2: 53 push %rbx
3: e8 42 a0 03 00 callq 0x3a04a
8: 48 85 ed test %rbp,%rbp
b: 74 3d je 0x4a
d: e8 38 a0 03 00 callq 0x3a04a
12: 48 8d bd d0 00 00 00 lea 0xd0(%rbp),%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: 75 35 jne 0x65
30: 48 8b 9d d0 00 00 00 mov 0xd0(%rbp),%rbx
37: bf 08 00 00 00 mov $0x8,%edi
3c: 48 89 de mov %rbx,%rsi
3f: e8 .byte 0xe8