EXT4-fs (loop4): bad geometry: block count 3773587089 exceeds size of device (2 blocks) ------------[ cut here ]------------ WARNING: ./include/linux/ns_common.h:288 at nsproxy_ns_active_get+0x33f/0x3d0, CPU#1: syz-executor.7/6353 Modules linked in: CPU: 1 UID: 0 PID: 6353 Comm: syz-executor.7 Not tainted 6.18.0-rc4-next-20251106 #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 de a2 ab ff 90 0f 0b 90 e9 3f fd ff ff e8 d0 a2 ab ff 90 0f 0b 90 e9 92 fd ff ff e8 c2 a2 ab ff 90 <0f> 0b 90 e9 e5 fd ff ff e8 b4 a2 ab ff 90 0f 0b 90 e9 38 fe ff ff RSP: 0018:ffff888049e87e08 EFLAGS: 00010212 RAX: 00000000000009d4 RBX: ffff88800d1f4000 RCX: ffffc9000925a000 RDX: 0000000000040000 RSI: ffffffff81c92b5e RDI: 0000000000000001 RBP: ffff88800e0a2001 R08: 0000000000000001 R09: ffffed1001c14541 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800dc6a380 R13: 0000000000000000 R14: ffff8880177a5340 R15: ffff888049e87e98 FS: 00007facfe651700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005612a15debe8 CR3: 00000000097ad000 CR4: 0000000000350ef0 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: 0033:0x7fad010fe107 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:00007facfe651128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007fad01210020 RCX: 00007fad010fe107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd0c5e994f R14: 00007facfe651300 R15: 0000000000022000 irq event stamp: 1153 hardirqs last enabled at (1161): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1170): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1070): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (751): [] __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#1: syz-executor.7/6353 Modules linked in: CPU: 1 UID: 0 PID: 6353 Comm: syz-executor.7 Tainted: G W 6.18.0-rc4-next-20251106 #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 c2 a2 ab ff 90 0f 0b 90 e9 e5 fd ff ff e8 b4 a2 ab ff 90 0f 0b 90 e9 38 fe ff ff e8 a6 a2 ab ff 90 <0f> 0b 90 e9 8b fe ff ff e8 98 a2 ab ff 90 0f 0b 90 e9 de fe ff ff RSP: 0018:ffff888049e87e08 EFLAGS: 00010216 RAX: 000000000001c518 RBX: ffff88800d1f4000 RCX: ffffc9000925a000 RDX: 0000000000040000 RSI: ffffffff81c92b7a RDI: 0000000000000001 RBP: ffff88801e144001 R08: 0000000000000001 R09: ffffed1003c28817 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88800dc6a380 R13: 0000000000000000 R14: ffff8880177a5340 R15: ffff888049e87e98 FS: 00007facfe651700(0000) GS:ffff8880e549c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005612a15debe8 CR3: 00000000097ad000 CR4: 0000000000350ef0 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: 0033:0x7fad010fe107 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:00007facfe651128 EFLAGS: 00000246 ORIG_RAX: 0000000000000134 RAX: ffffffffffffffda RBX: 00007fad01210020 RCX: 00007fad010fe107 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000000000ef RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd0c5e994f R14: 00007facfe651300 R15: 0000000000022000 irq event stamp: 1557 hardirqs last enabled at (1565): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (1574): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (1224): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1219): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- loop4: detected capacity change from 0 to 16 EXT4-fs (loop4): bad geometry: block count 3773587089 exceeds size of device (2 blocks) SELinux: security_context_str_to_sid (system_u) failed with errno=-22