RBP: 00007fc11e7ba1d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007fffb812828f R14: 00007fc11e7ba300 R15: 0000000000022000 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7792 at net/ipv4/ipmr.c:440 ipmr_rules_exit+0x13a/0x1c0 Modules linked in: CPU: 0 UID: 0 PID: 7792 Comm: syz-executor.7 Not tainted 6.13.0-rc3-next-20241220 #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 5c 80 a3 00 e8 47 df 6a fd 90 <0f> 0b 90 eb 93 e8 3c df 6a fd 0f b6 2d 1d 26 36 02 31 ff 89 ee e8 RSP: 0018:ffff8880411c7c20 EFLAGS: 00010212 RAX: 0000000000027bb4 RBX: ffff88803ec54500 RCX: ffffc9000681f000 RDX: 0000000000040000 RSI: ffffffff8406ea09 RDI: 0000000000000005 RBP: ffff88800e596000 R08: 0000000000000000 R09: ffffed1007d8a8c9 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001 R13: ffff88803ec54d00 R14: ffff88803ec54500 R15: fffffbfff0c51178 FS: 00007fa6ea659700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8c809d5718 CR3: 000000000dd52000 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: 0033:0x7fa6ed0e3b19 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:00007fa6ea659188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007fa6ed1f6f60 RCX: 00007fa6ed0e3b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000048040080 RBP: 00007fa6ed13df6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe88da68df R14: 00007fa6ea659300 R15: 0000000000022000 irq event stamp: 17567 hardirqs last enabled at (17577): [] __up_console_sem+0x78/0x80 hardirqs last disabled at (17588): [] __up_console_sem+0x5d/0x80 softirqs last enabled at (17552): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (17537): [] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- netlink: 'syz-executor.5': attribute type 7 has an invalid length. netlink: 'syz-executor.5': attribute type 7 has an invalid length.