No source specified ------------[ cut here ]------------ WARNING: CPU: 1 PID: 9742 at net/ipv4/ipmr.c:440 ipmr_rules_exit+0x13a/0x1c0 Modules linked in: CPU: 1 UID: 0 PID: 9742 Comm: syz-executor.2 Not tainted 6.13.0-rc2-next-20241212 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:ipmr_rules_exit+0x13a/0x1c0 Code: ff df 48 c1 ea 03 80 3c 02 00 75 7d 48 c7 83 00 08 00 00 00 00 00 00 5b 5d 41 5c 41 5d 41 5e e9 bc 73 a3 00 e8 d7 bf 6d fd 90 <0f> 0b 90 eb 93 e8 cc bf 6d fd 0f b6 2d 10 ce 38 02 31 ff 89 ee e8 RSP: 0018:ffff88801561fc20 EFLAGS: 00010212 RAX: 0000000000017f7d RBX: ffff8880167cae00 RCX: ffffc90000b9f000 RDX: 0000000000040000 RSI: ffffffff84043329 RDI: 0000000000000005 RBP: ffff88803c9cc000 R08: 0000000000000000 R09: ffffed1002cf95e9 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8880167cb600 R14: ffff8880167cae00 R15: fffffbfff0c50f98 FS: 00007f5302608700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f36c689e000 CR3: 000000001b42a000 CR4: 0000000000350ef0 Call Trace: ipmr_net_exit_batch+0x53/0xa0 ops_exit_list+0x12b/0x180 setup_net+0x492/0x7a0 copy_net_ns+0x2e3/0x700 create_new_namespaces+0x3f6/0xaf0 unshare_nsproxy_namespaces+0xc0/0x200 ksys_unshare+0x46a/0xa10 __x64_sys_unshare+0x31/0x40 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f53050b3b19 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:00007f5302608188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007f53051c7020 RCX: 00007f53050b3b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000048040080 No source specified RBP: 00007f530510df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffff8243bbf R14: 00007f5302608300 R15: 0000000000022000 irq event stamp: 7451 hardirqs last enabled at (7461): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (7472): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (7146): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (7141): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- loop4: detected capacity change from 0 to 512 EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop4): group descriptors corrupted! loop4: detected capacity change from 0 to 512 loop3: detected capacity change from 0 to 264192 EXT4-fs (loop4): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop4): group descriptors corrupted! loop7: detected capacity change from 0 to 40 loop3: detected capacity change from 0 to 264192