------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:262 at nsproxy_ns_active_get+0x33f/0x3d0, CPU#1: syz-executor.7/36696 Modules linked in: CPU: 1 UID: 0 PID: 36696 Comm: syz-executor.7 Not tainted 6.18.0-rc4-next-20251103 #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+0x33f/0x3d0 Code: ab ff 90 0f 0b 90 eb ee e8 2e e2 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 20 e2 ab ff 90 0f 0b 90 e9 92 fd ff ff e8 12 e2 ab ff 90 <0f> 0b 90 e9 e5 fd ff ff e8 04 e2 ab ff 90 0f 0b 90 e9 38 fe ff ff RSP: 0018:ffff88801bd5fe08 EFLAGS: 00010216 RAX: 0000000000000db9 RBX: ffff888040a8c478 RCX: ffffc90006ee8000 RDX: 0000000000040000 RSI: ffffffff81c89d0e RDI: 0000000000000001 RBP: ffff888017f12001 R08: 0000000000000001 R09: ffffed1002fe2541 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888013aabdc0 R13: 0000000000000000 R14: ffff8880498a0000 R15: ffff88801bd5fe98 FS: 00007f7046ea1700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7049a3f018 CR3: 000000001eb80000 CR4: 0000000000350ef0 Call Trace: switch_task_namespaces+0x3d/0x110 __do_sys_setns+0x6b0/0x19a0 do_syscall_64+0xbf/0x3f0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f704992d107 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:00007f7046ea1128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f7049a3ef60 RCX: 00007f704992d107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc433b014f R14: 00007f7046ea1300 R15: 0000000000022000 irq event stamp: 547 hardirqs last enabled at (557): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (564): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (312): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (299): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:262 at nsproxy_ns_active_get+0x35b/0x3d0, CPU#1: syz-executor.7/36696 Modules linked in: CPU: 1 UID: 0 PID: 36696 Comm: syz-executor.7 Tainted: G W 6.18.0-rc4-next-20251103 #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 12 e2 ab ff 90 0f 0b 90 e9 e5 fd ff ff e8 04 e2 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 f6 e1 ab ff 90 <0f> 0b 90 e9 8b fe ff ff e8 e8 e1 ab ff 90 0f 0b 90 e9 de fe ff ff RSP: 0018:ffff88801bd5fe08 EFLAGS: 00010212 RAX: 000000000001b3db RBX: ffff888040a8c478 RCX: ffffc90006ee8000 RDX: 0000000000040000 RSI: ffffffff81c89d2a RDI: 0000000000000001 RBP: ffff888017d10c01 R08: 0000000000000001 R09: ffffed1002fa2197 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888013aabdc0 R13: 0000000000000000 R14: ffff8880498a0000 R15: ffff88801bd5fe98 FS: 00007f7046ea1700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7049a3f018 CR3: 000000001eb80000 CR4: 0000000000350ef0 Call Trace: switch_task_namespaces+0x3d/0x110 __do_sys_setns+0x6b0/0x19a0 do_syscall_64+0xbf/0x3f0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f704992d107 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:00007f7046ea1128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007f7049a3ef60 RCX: 00007f704992d107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc433b014f R14: 00007f7046ea1300 R15: 0000000000022000 irq event stamp: 937 hardirqs last enabled at (945): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (952): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (312): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (299): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:262 at nsproxy_ns_active_get+0x369/0x3d0, CPU#1: syz-executor.7/36696 Modules linked in: CPU: 1 UID: 0 PID: 36696 Comm: syz-executor.7 Tainted: G W 6.18.0-rc4-next-20251103 #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+0x369/0x3d0 Code: 0f 0b 90 e9 e5 fd ff ff e8 04 e2 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 f6 e1 ab ff 90 0f 0b 90 e9 8b fe ff ff e8 e8 e1 ab ff 90 <0f> 0b 90 e9 de fe ff ff e8 da e1 ab ff 90 0f 0b 90 e9 31 ff ff ff audit: type=1326 audit(1762157398.391:38): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=36695 comm="syz-executor.3" exe="/syz-executor.3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fcd425a5b19 code=0x0 RSP: 0018:ffff88801bd5fe08 EFLAGS: 00010216 RAX: 000000000003d0ab RBX: ffff888040a8c208 RCX: ffffc90006ee8000 RDX: 0000000000040000 RSI: ffffffff81c89d38 RDI: 0000000000000001 RBP: ffff888016493001 R08: 0000000000000001 R09: ffffed1002c92652 R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880167d1dc0 R13: 0000000000000000 R14: ffff8880498a0000 R15: ffff88801bd5fe98 FS: 00007f7046ea1700(0000) GS:ffff8880e54a8000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcd426b5000 CR3: 000000001eb80000 CR4: 0000000000350ef0 Call Trace: switch_task_namespaces+0x3d/0x110 __do_sys_setns+0x6b0/0x19a0 do_syscall_64+0xbf/0x3f0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f704992d107 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:00007f7046ea1128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f704992d107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7046ea16bc R13: 000000000000000e R14: 00007f7046ea1300 R15: 0000000000022000 irq event stamp: 1991 hardirqs last enabled at (1999): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (2008): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1824): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1661): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- audit: type=1326 audit(1762157398.588:39): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=36910 comm="syz-executor.3" exe="/syz-executor.3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7fcd425a5b19 code=0x0 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pid=37182 comm=syz-executor.2 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pid=37194 comm=syz-executor.2 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pid=37208 comm=syz-executor.2 SELinux: unrecognized netlink message: protocol=6 nlmsg_type=0 sclass=netlink_xfrm_socket pid=37226 comm=syz-executor.2 EXT4-fs warning (device sda): verify_group_input:136: Cannot add at group 524288 (only 16 groups) EXT4-fs warning (device sda): verify_group_input:136: Cannot add at group 524288 (only 16 groups) EXT4-fs warning (device sda): verify_group_input:136: Cannot add at group 524288 (only 16 groups) EXT4-fs warning (device sda): verify_group_input:136: Cannot add at group 524288 (only 16 groups) random: crng reseeded on system resumption Unrecognized hibernate image header format! PM: hibernation: Image mismatch: architecture specific data random: crng reseeded on system resumption random: crng reseeded on system resumption Unrecognized hibernate image header format! PM: hibernation: Image mismatch: architecture specific data random: crng reseeded on system resumption Unrecognized hibernate image header format! PM: hibernation: Image mismatch: architecture specific data random: crng reseeded on system resumption Unrecognized hibernate image header format! PM: hibernation: Image mismatch: architecture specific data random: crng reseeded on system resumption Unrecognized hibernate image header format! PM: hibernation: Image mismatch: architecture specific data __nla_validate_parse: 1 callbacks suppressed netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. syz-executor.0 calls setitimer() with new_value NULL pointer. Misfeature support will be removed netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'. mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium sr 1:0:0:0: [sr0] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_OK cmd_age=0s sr 1:0:0:0: [sr0] tag#0 Sense Key : Not Ready [current] sr 1:0:0:0: [sr0] tag#0 Add. Sense: Medium not present sr 1:0:0:0: [sr0] tag#0 CDB: Read(10) 28 00 00 00 00 00 00 00 08 00 I/O error, dev sr0, sector 0 op 0x0:(READ) flags 0x80700 phys_seg 4 prio class 2