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: 11421 Comm: syz-executor.0 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:ffff88801b427db0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90000805000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1003684fa3 R10: 0000000000000000 R11: ffff88802e302680 R12: ffff888009ea85b0 R13: ffff888009ea8764 R14: ffffffff85cfbf20 R15: ffff888046028878 FS: 00007fbb30db7700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4b5c513547 CR3: 000000004960c000 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: 0033:0x7fbb33841b19 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:00007fbb30db7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007fbb33954f60 RCX: 00007fbb33841b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000022060200 RBP: 00007fbb3389bf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffff4f52fef R14: 00007fbb30db7300 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:ffff88801b427db0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90000805000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1003684fa3 R10: 0000000000000000 R11: ffff88802e302680 R12: ffff888009ea85b0 R13: ffff888009ea8764 R14: ffffffff85cfbf20 R15: ffff888046028878 FS: 00007fbb30db7700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4b5c513547 CR3: 000000004960c000 CR4: 0000000000350ef0 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#2] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf] CPU: 0 UID: 0 PID: 11431 Comm: syz-executor.0 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:ffff888013e3fdb0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90000a06000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed10027c7fa3 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888009ea85b0 R13: ffff888009ea8764 R14: ffffffff85cfbf20 R15: ffff88801f79bff8 FS: 00007fbb30d96700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbb30d75718 CR3: 000000004960c000 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: 0033:0x7fbb33841b19 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:00007fbb30d96188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007fbb33955020 RCX: 00007fbb33841b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000022060200 RBP: 00007fbb3389bf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffff4f52fef R14: 00007fbb30d96300 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:ffff88801b427db0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90000805000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1003684fa3 R10: 0000000000000000 R11: ffff88802e302680 R12: ffff888009ea85b0 R13: ffff888009ea8764 R14: ffffffff85cfbf20 R15: ffff888046028878 FS: 00007fbb30d96700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbb30d75718 CR3: 000000004960c000 CR4: 0000000000350ef0 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#3] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf] CPU: 0 UID: 0 PID: 11449 Comm: syz-executor.0 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:ffff88802481fdb0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90000805000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1004903fa3 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888009ea85b0 R13: ffff888009ea8764 R14: ffffffff85cfbf20 R15: ffff888016fda438 FS: 00007fbb30db7700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb4525763a4 CR3: 000000001e984000 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: 0033:0x7fbb33841b19 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:00007fbb30db7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007fbb33954f60 RCX: 00007fbb33841b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000022060200 RBP: 00007fbb3389bf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffff4f52fef R14: 00007fbb30db7300 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:ffff88801b427db0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90000805000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1003684fa3 R10: 0000000000000000 R11: ffff88802e302680 R12: ffff888009ea85b0 R13: ffff888009ea8764 R14: ffffffff85cfbf20 R15: ffff888046028878 FS: 00007fbb30db7700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb4525763a4 CR3: 000000001e984000 CR4: 0000000000350ef0 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#4] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf] CPU: 0 UID: 0 PID: 11464 Comm: syz-executor.7 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:ffff8880248ffdb0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90006c37000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed100491ffa3 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888017a3c2d8 R13: ffff888017a3c48c R14: ffffffff85cfbf20 R15: ffff88804bf25bb8 FS: 00007f4b59a09700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4b5c5a3000 CR3: 000000001e397000 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: 0033:0x7f4b5c493b19 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:00007f4b59a09188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007f4b5c5a6f60 RCX: 00007f4b5c493b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000022060200 RBP: 00007f4b5c4edf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc70e9065f R14: 00007f4b59a09300 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:ffff88801b427db0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90000805000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1003684fa3 R10: 0000000000000000 R11: ffff88802e302680 R12: ffff888009ea85b0 R13: ffff888009ea8764 R14: ffffffff85cfbf20 R15: ffff888046028878 FS: 00007f4b59a09700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4b5c5a3000 CR3: 000000001e397000 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: 1 UID: 0 PID: 11485 Comm: syz-executor.7 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:ffff88802657fdb0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90006c37000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1004caffa3 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888017a3c2d8 R13: ffff888017a3c48c R14: ffffffff85cfbf20 R15: ffff888016f15bb8 FS: 00007f4b59a09700(0000) GS:ffff8880e5497000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f43bdabd000 CR3: 0000000048ea5000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 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: 0033:0x7f4b5c493b19 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:00007f4b59a09188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007f4b5c5a6f60 RCX: 00007f4b5c493b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000022060200 RBP: 00007f4b5c4edf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc70e9065f R14: 00007f4b59a09300 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:ffff88801b427db0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90000805000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1003684fa3 R10: 0000000000000000 R11: ffff88802e302680 R12: ffff888009ea85b0 R13: ffff888009ea8764 R14: ffffffff85cfbf20 R15: ffff888046028878 FS: 00007f4b59a09700(0000) GS:ffff8880e5497000(0000) knlGS:0000000000000000 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#6] SMP KASAN NOPTI CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf] CR2: 00007f43bdabd000 CR3: 0000000048ea5000 CR4: 0000000000350ef0 CPU: 0 UID: 0 PID: 11491 Comm: syz-executor.0 Tainted: G D 6.18.0-rc5-next-20251112 #1 PREEMPT(voluntary) DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Tainted: [D]=DIE Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 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:ffff88802313fdb0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90000805000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1004627fa3 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888009ea85b0 R13: ffff888009ea8764 R14: ffffffff85cfbf20 R15: ffff888026562438 FS: 00007fbb30db7700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbb33951000 CR3: 000000004be67000 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: 0033:0x7fbb33841b19 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:00007fbb30db7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007fbb33954f60 RCX: 00007fbb33841b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000022060200 RBP: 00007fbb3389bf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffff4f52fef R14: 00007fbb30db7300 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:ffff88801b427db0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90000805000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1003684fa3 R10: 0000000000000000 R11: ffff88802e302680 R12: ffff888009ea85b0 R13: ffff888009ea8764 R14: ffffffff85cfbf20 R15: ffff888046028878 FS: 00007fbb30db7700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbb33951000 CR3: 000000004be67000 CR4: 0000000000350ef0 9p: Bad value for 'rfdno' Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#7] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf] CPU: 0 UID: 0 PID: 11519 Comm: syz-executor.7 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:ffff888023c47db0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90006c37000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1004788fa3 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888017a3c2d8 R13: ffff888017a3c48c R14: ffffffff85cfbf20 R15: ffff888046028878 FS: 00007f4b59a09700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d323000 CR3: 000000004d50c000 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: 0033:0x7f4b5c493b19 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:00007f4b59a09188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007f4b5c5a6f60 RCX: 00007f4b5c493b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000022060200 RBP: 00007f4b5c4edf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc70e9065f R14: 00007f4b59a09300 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:ffff88801b427db0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90000805000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1003684fa3 R10: 0000000000000000 R11: ffff88802e302680 R12: ffff888009ea85b0 R13: ffff888009ea8764 R14: ffffffff85cfbf20 R15: ffff888046028878 FS: 00007f4b59a09700(0000) GS:ffff8880e5397000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d323000 CR3: 000000004d50c000 CR4: 0000000000350ef0 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000017: 0000 [#8] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x00000000000000b8-0x00000000000000bf] CPU: 1 UID: 0 PID: 11524 Comm: syz-executor.0 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:ffff8880262cfdb0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90000805000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1004c59fa3 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888009ea85b0 R13: ffff888009ea8764 R14: ffffffff85cfbf20 R15: ffff888023dc0878 FS: 00007fbb30db7700(0000) GS:ffff8880e5497000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555925acc98 CR3: 000000004d5c3000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 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: 0033:0x7fbb33841b19 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:00007fbb30db7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007fbb33954f60 RCX: 00007fbb33841b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000022060200 RBP: 00007fbb3389bf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffff4f52fef R14: 00007fbb30db7300 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:ffff88801b427db0 EFLAGS: 00010216 RAX: dffffc0000000000 RBX: 0000000000000003 RCX: ffffc90000805000 RDX: 0000000000000017 RSI: ffffffff81712278 RDI: 00000000000000ba RBP: ffffffffffffffea R08: 0000000000000001 R09: ffffed1003684fa3 R10: 0000000000000000 R11: ffff88802e302680 R12: ffff888009ea85b0 R13: ffff888009ea8764 R14: ffffffff85cfbf20 R15: ffff888046028878 FS: 00007fbb30db7700(0000) GS:ffff8880e5497000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555925acc98 CR3: 000000004d5c3000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 ======================================================= 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. ======================================================= EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. EXT4-fs (sda): re-mounted 7b5d9a40-9011-49ec-8035-27953f97a4d8. __nla_validate_parse: 1 callbacks suppressed netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. audit: type=1400 audit(1762935449.062:34): avc: denied { block_suspend } for pid=11617 comm="syz-executor.0" capability=36 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.7'. Bluetooth: hci0: Controller not accepting commands anymore: ncmd = 0 Bluetooth: hci0: Injecting HCI hardware error event Bluetooth: hci0: hardware error 0x00 Bluetooth: hci7: Controller not accepting commands anymore: ncmd = 0 Bluetooth: hci7: Injecting HCI hardware error event Bluetooth: hci5: Controller not accepting commands anymore: ncmd = 0 Bluetooth: hci5: Injecting HCI hardware error event Bluetooth: hci5: hardware error 0x00 Bluetooth: hci7: hardware error 0x00 Bluetooth: hci6: Controller not accepting commands anymore: ncmd = 0 Bluetooth: hci6: Injecting HCI hardware error event Bluetooth: hci6: hardware error 0x00 ---------------- 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