Buffer I/O error on dev sr0, logical block 0, lost async page write
Buffer I/O error on dev sr0, logical block 1, lost async page write
Buffer I/O error on dev sr0, logical block 2, lost async page write
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x323/0x3d0, CPU#0: syz-executor.3/19408
Modules linked in:
CPU: 0 UID: 0 PID: 19408 Comm: syz-executor.3 Not tainted 6.18.0-rc4-next-20251105 #1 PREEMPT(voluntary) 
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_ns_active_get+0x323/0x3d0
Code: 00 01 0f 98 c3 31 ff 89 de e8 e9 cd ab ff 84 db 75 07 5b 5d e9 0e d3 ab ff e8 09 d3 ab ff 90 0f 0b 90 eb ee e8 fe d2 ab ff 90 <0f> 0b 90 e9 3f fd ff ff e8 f0 d2 ab ff 90 0f 0b 90 e9 92 fd ff ff
RSP: 0018:ffff88804facfe08 EFLAGS: 00010216
RAX: 00000000000015cd RBX: ffff88800c883a28 RCX: ffffc90008c27000
RDX: 0000000000040000 RSI: ffffffff81c8c9f2 RDI: 0000000000000001
RBP: ffff88800b83e001 R08: 0000000000000001 R09: ffffed1001707c17
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888016a98540
R13: 0000000000000000 R14: ffff88800a070000 R15: ffff88804facfe98
FS:  00007f158df99700(0000) GS:ffff8880e53a5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcbdada0718 CR3: 0000000059adb000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 switch_task_namespaces+0x3d/0x110
 __do_sys_setns+0x6b0/0x19a0
 do_syscall_64+0xbf/0x430
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1590a25107
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 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:00007f158df99128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f1590b36f60 RCX: 00007f1590a25107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc702ea0cf R14: 00007f158df99300 R15: 0000000000022000
 </TASK>
irq event stamp: 1541
hardirqs last  enabled at (1549): [<ffffffff815482d8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (1558): [<ffffffff815482bd>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (1456): [<ffffffff813bc08c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (1121): [<ffffffff813bc424>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x331/0x3d0, CPU#0: syz-executor.3/19408
Modules linked in:
CPU: 0 UID: 0 PID: 19408 Comm: syz-executor.3 Tainted: G        W           6.18.0-rc4-next-20251105 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_ns_active_get+0x331/0x3d0
Code: 84 db 75 07 5b 5d e9 0e d3 ab ff e8 09 d3 ab ff 90 0f 0b 90 eb ee e8 fe d2 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 f0 d2 ab ff 90 <0f> 0b 90 e9 92 fd ff ff e8 e2 d2 ab ff 90 0f 0b 90 e9 e5 fd ff ff
RSP: 0018:ffff88804facfe08 EFLAGS: 00010212
RAX: 000000000001e29e RBX: ffff88800c883a28 RCX: ffffc90008c27000
RDX: 0000000000040000 RSI: ffffffff81c8ca00 RDI: 0000000000000001
RBP: ffff88800ee70801 R08: 0000000000000001 R09: ffffed1001dce15b
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888016a98540
R13: 0000000000000000 R14: ffff88800a070000 R15: ffff88804facfe98
FS:  00007f158df99700(0000) GS:ffff8880e53a5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcbdada0718 CR3: 0000000059adb000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 switch_task_namespaces+0x3d/0x110
 __do_sys_setns+0x6b0/0x19a0
 do_syscall_64+0xbf/0x430
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1590a25107
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 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:00007f158df99128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f1590b36f60 RCX: 00007f1590a25107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc702ea0cf R14: 00007f158df99300 R15: 0000000000022000
 </TASK>
irq event stamp: 1973
hardirqs last  enabled at (2031): [<ffffffff815482d8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (2042): [<ffffffff815482bd>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (2028): [<ffffffff813bc08c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (1983): [<ffffffff813bc424>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x33f/0x3d0, CPU#0: syz-executor.3/19408
Modules linked in:
CPU: 0 UID: 0 PID: 19408 Comm: syz-executor.3 Tainted: G        W           6.18.0-rc4-next-20251105 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_ns_active_get+0x33f/0x3d0
Code: ab ff 90 0f 0b 90 eb ee e8 fe d2 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 f0 d2 ab ff 90 0f 0b 90 e9 92 fd ff ff e8 e2 d2 ab ff 90 <0f> 0b 90 e9 e5 fd ff ff e8 d4 d2 ab ff 90 0f 0b 90 e9 38 fe ff ff
RSP: 0018:ffff88804facfe08 EFLAGS: 00010216
RAX: 000000000003b5cd RBX: ffff88800c883a28 RCX: ffffc90008c27000
RDX: 0000000000040000 RSI: ffffffff81c8ca0e RDI: 0000000000000001
RBP: ffff888015ea6001 R08: 0000000000000001 R09: ffffed1002bd4d41
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888016a98540
R13: 0000000000000000 R14: ffff88800a070000 R15: ffff88804facfe98
FS:  00007f158df99700(0000) GS:ffff8880e53a5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcbdada0718 CR3: 0000000059adb000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 switch_task_namespaces+0x3d/0x110
 __do_sys_setns+0x6b0/0x19a0
 do_syscall_64+0xbf/0x430
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1590a25107
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 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:00007f158df99128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f1590b36f60 RCX: 00007f1590a25107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc702ea0cf R14: 00007f158df99300 R15: 0000000000022000
 </TASK>
irq event stamp: 3197
hardirqs last  enabled at (3205): [<ffffffff815482d8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (3214): [<ffffffff815482bd>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (3132): [<ffffffff813bc08c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (2773): [<ffffffff813bc424>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x35b/0x3d0, CPU#0: syz-executor.3/19408
Modules linked in:
CPU: 0 UID: 0 PID: 19408 Comm: syz-executor.3 Tainted: G        W           6.18.0-rc4-next-20251105 #1 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:nsproxy_ns_active_get+0x35b/0x3d0
Code: 0f 0b 90 e9 92 fd ff ff e8 e2 d2 ab ff 90 0f 0b 90 e9 e5 fd ff ff e8 d4 d2 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 c6 d2 ab ff 90 <0f> 0b 90 e9 8b fe ff ff e8 b8 d2 ab ff 90 0f 0b 90 e9 de fe ff ff
RSP: 0018:ffff88804facfe08 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffff88800c883a28 RCX: ffffc90008c27000
RDX: 0000000000040000 RSI: ffffffff81c8ca2a RDI: 0000000000000001
RBP: ffff8880164e8e01 R08: 0000000000000001 R09: ffffed1002c9d1d7
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888016a98540
R13: 0000000000000000 R14: ffff88800a070000 R15: ffff88804facfe98
FS:  00007f158df99700(0000) GS:ffff8880e53a5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcbdada0718 CR3: 0000000059adb000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 switch_task_namespaces+0x3d/0x110
 __do_sys_setns+0x6b0/0x19a0
 do_syscall_64+0xbf/0x430
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f1590a25107
Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 34 01 00 00 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:00007f158df99128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f1590b36f60 RCX: 00007f1590a25107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc702ea0cf R14: 00007f158df99300 R15: 0000000000022000
 </TASK>
irq event stamp: 3629
hardirqs last  enabled at (3639): [<ffffffff815482d8>] __up_console_sem+0x78/0x80
hardirqs last disabled at (3648): [<ffffffff815482bd>] __up_console_sem+0x5d/0x80
softirqs last  enabled at (3588): [<ffffffff813bc08c>] handle_softirqs+0x50c/0x770
softirqs last disabled at (3581): [<ffffffff813bc424>] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 0 op 0x1:(WRITE) flags 0x800 phys_seg 3 prio class 2
Buffer I/O error on dev sr0, logical block 0, lost async page write
Buffer I/O error on dev sr0, logical block 1, lost async page write
Buffer I/O error on dev sr0, logical block 2, lost async page write
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 0 op 0x1:(WRITE) flags 0x800 phys_seg 3 prio class 2
Buffer I/O error on dev sr0, logical block 0, lost async page write
Buffer I/O error on dev sr0, logical block 1, lost async page write
Buffer I/O error on dev sr0, logical block 2, lost async page write
sr 1:0:0:0: [sr0] tag#0 unaligned transfer
I/O error, dev sr0, sector 0 op 0x1:(WRITE) flags 0x800 phys_seg 3 prio class 2
Buffer I/O error on dev sr0, logical block 0, lost async page write
Buffer I/O error on dev sr0, logical block 1, lost async page write
Buffer I/O error on dev sr0, logical block 2, lost async page write