------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x33f/0x3d0, CPU#0: syz-executor.2/134993
Modules linked in:
CPU: 0 UID: 0 PID: 134993 Comm: syz-executor.2 Not tainted 6.18.0-rc4-next-20251107 #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 3e 24 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 30 24 ab ff 90 0f 0b 90 e9 92 fd ff ff e8 22 24 ab ff 90 <0f> 0b 90 e9 e5 fd ff ff e8 14 24 ab ff 90 0f 0b 90 e9 38 fe ff ff
RSP: 0018:ffff888053677e08 EFLAGS: 00010206
RAX: 0000000000000d10 RBX: ffff88800a00f000 RCX: ffffc9000bd6f000
RDX: 0000000000040000 RSI: ffffffff81c9ab0e RDI: 0000000000000001
RBP: ffff8880169c4001 R08: 0000000000000001 R09: ffffed1002d38941
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880166c2a80
R13: 0000000000000000 R14: ffff88804df61bc0 R15: ffff888053677e98
FS: 00007f91b808e700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f91bac2c018 CR3: 0000000052854000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f91bab1a107
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:00007f91b808e128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f91bac2bf60 RCX: 00007f91bab1a107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc00e1091f R14: 00007f91b808e300 R15: 0000000000022000
irq event stamp: 553
hardirqs last enabled at (563): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (578): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (576): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (571): [] __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.2/134993
Modules linked in:
CPU: 0 UID: 0 PID: 134993 Comm: syz-executor.2 Tainted: G W 6.18.0-rc4-next-20251107 #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 22 24 ab ff 90 0f 0b 90 e9 e5 fd ff ff e8 14 24 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 06 24 ab ff 90 <0f> 0b 90 e9 8b fe ff ff e8 f8 23 ab ff 90 0f 0b 90 e9 de fe ff ff
RSP: 0018:ffff888053677e08 EFLAGS: 00010212
RAX: 000000000001c4d4 RBX: ffff88800a00f000 RCX: ffffc9000bd6f000
RDX: 0000000000040000 RSI: ffffffff81c9ab2a RDI: 0000000000000001
RBP: ffff888017a34801 R08: 0000000000000001 R09: ffffed1002f46917
R10: 0000000000000001 R11: 0000000000000001 R12: ffff8880166c2a80
R13: 0000000000000000 R14: ffff88804df61bc0 R15: ffff888053677e98
FS: 00007f91b808e700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f91bac2c018 CR3: 0000000052854000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f91bab1a107
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:00007f91b808e128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 00007f91bac2bf60 RCX: 00007f91bab1a107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc00e1091f R14: 00007f91b808e300 R15: 0000000000022000
irq event stamp: 995
hardirqs last enabled at (1003): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (1014): [] sysvec_apic_timer_interrupt+0xf/0x80
softirqs last enabled at (576): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (571): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x369/0x3d0, CPU#0: syz-executor.2/134993
Modules linked in:
CPU: 0 UID: 0 PID: 134993 Comm: syz-executor.2 Tainted: G W 6.18.0-rc4-next-20251107 #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 14 24 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 06 24 ab ff 90 0f 0b 90 e9 8b fe ff ff e8 f8 23 ab ff 90 <0f> 0b 90 e9 de fe ff ff e8 ea 23 ab ff 90 0f 0b 90 e9 31 ff ff ff
RSP: 0018:ffff888053677e08 EFLAGS: 00010212
RAX: 000000000003f453 RBX: ffff88800a00f618 RCX: ffffc9000bd6f000
RDX: 0000000000040000 RSI: ffffffff81c9ab38 RDI: 0000000000000001
RBP: ffff888017810001 R08: 0000000000000001 R09: ffffed1002f02042
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888037196fc0
R13: 0000000000000000 R14: ffff88804df61bc0 R15: ffff888053677e98
FS: 00007f91b808e700(0000) GS:ffff8880e5398000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1a2803c0f8 CR3: 0000000052854000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
switch_task_namespaces+0x3d/0x110
__do_sys_setns+0x6b0/0x19a0
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f91bab1a107
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:00007f91b808e128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f91bab1a107
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f91b808e6bc
R13: 000000000000000e R14: 00007f91b808e300 R15: 0000000000022000
irq event stamp: 1551
hardirqs last enabled at (1561): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (1570): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (1500): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (1491): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
loop0: detected capacity change from 0 to 264192
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop0: detected capacity change from 0 to 264192
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop0: detected capacity change from 0 to 264192
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
kexec: Could not allocate control_code_buffer
loop0: detected capacity change from 0 to 264192
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
kexec: Could not allocate control_code_buffer
loop0: detected capacity change from 0 to 264192
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
loop0: detected capacity change from 0 to 264192
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.
syz-executor.5: page allocation failure: order:0, mode:0x10cc0(GFP_KERNEL|__GFP_NORETRY), nodemask=(null),cpuset=/,mems_allowed=0
CPU: 0 UID: 0 PID: 137273 Comm: syz-executor.5 Tainted: G W 6.18.0-rc4-next-20251107 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Call Trace:
dump_stack_lvl+0xfa/0x120
warn_alloc+0x211/0x360
__alloc_frozen_pages_noprof+0x125e/0x1f10
alloc_pages_mpol+0xed/0x340
alloc_pages_noprof+0x9d/0x180
kimage_alloc_pages+0x70/0x240
kimage_alloc_control_pages+0x18f/0x970
do_kexec_load+0x417/0x8a0
__x64_sys_kexec_load+0x1c6/0x230
do_syscall_64+0xbf/0x430
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe8a66cdb19
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:00007fe8a3c43188 EFLAGS: 00000246 ORIG_RAX: 00000000000000f6
RAX: ffffffffffffffda RBX: 00007fe8a67e0f60 RCX: 00007fe8a66cdb19
RDX: 0000000020000040 RSI: 0000000000000010 RDI: 0000000000000000
RBP: 00007fe8a6727f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffecb1407af R14: 00007fe8a3c43300 R15: 0000000000022000
Mem-Info:
active_anon:10496 inactive_anon:38568 isolated_anon:0
active_file:14047 inactive_file:3085 isolated_file:100
unevictable:2 dirty:69 writeback:0
slab_reclaimable:7163 slab_unreclaimable:65209
mapped:78858 shmem:4234 pagetables:9319
sec_pagetables:0 bounce:0
kernel_misc_reclaimable:0
free:3995 free_pcp:6 free_cma:0
Node 0 active_anon:41984kB inactive_anon:154272kB active_file:56188kB inactive_file:12240kB unevictable:8kB isolated(anon):0kB isolated(file):484kB mapped:315348kB dirty:276kB writeback:0kB shmem:16936kB kernel_stack:12480kB pagetables:37276kB sec_pagetables:0kB all_unreclaimable? no Balloon:0kB
Node 0 DMA free:6436kB boost:0kB min:44kB low:56kB high:68kB reserved_highatomic:0KB free_highatomic:0KB active_anon:0kB inactive_anon:16kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB zspages:0kB present:15992kB managed:15360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 1599 1599 1599
Node 0 DMA32 free:9544kB boost:12480kB min:17552kB low:19176kB high:20800kB reserved_highatomic:0KB free_highatomic:0KB active_anon:42068kB inactive_anon:154188kB active_file:56188kB inactive_file:12148kB unevictable:8kB writepending:276kB zspages:0kB present:2080640kB managed:1638356kB mlocked:0kB bounce:0kB free_pcp:84kB local_pcp:0kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0
Node 0 DMA: 2*4kB (UM) 2*8kB (UM) 3*16kB (UM) 3*32kB (U) 2*64kB (UM) 2*128kB (UM) 1*256kB (M) 1*512kB (M) 1*1024kB (M) 0*2048kB 1*4096kB (M) = 6440kB
Node 0 DMA32: 1310*4kB (UME) 127*8kB (UME) 64*16kB (UME) 49*32kB (UME) 7*64kB (UME) 3*128kB (UM) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 9680kB
Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
19636 total pagecache pages
0 pages in swap cache
Free swap = 0kB
Total swap = 0kB
524158 pages RAM
0 pages HighMem/MovableOnly
110729 pages reserved
kexec: Could not allocate control_code_buffer
loop0: detected capacity change from 0 to 264192
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
EXT4-fs (loop0): unmounting filesystem 00000000-0000-0000-0000-000000000000.