loop3: detected capacity change from 0 to 512 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 9211 at net/ipv4/ipmr.c:440 ipmr_rules_exit+0x13a/0x1c0 Modules linked in: CPU: 1 UID: 0 PID: 9211 Comm: syz-executor.0 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:ffff88802ef1fc20 EFLAGS: 00010216 RAX: 0000000000016894 RBX: ffff88804269c500 RCX: ffffc90001797000 RDX: 0000000000040000 RSI: ffffffff8406ea09 RDI: 0000000000000005 RBP: ffff888014c1a000 R08: 0000000000000000 R09: ffffed10084d38c9 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001 R13: ffff88804269cd00 R14: ffff88804269c500 R15: fffffbfff0c51178 FS: 00007f9905f0d700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe1c736658 CR3: 0000000034424000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: <TASK> 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: 0033:0x7f99089d9b19 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:00007f9905f0d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007f9908aed0e0 RCX: 00007f99089d9b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 RBP: 00007f9908a33f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd223ef08f R14: 00007f9905f0d300 R15: 0000000000022000 </TASK> irq event stamp: 7127 hardirqs last enabled at (7133): [<ffffffff8153304f>] vprintk_emit.part.0+0x57f/0x5c0 hardirqs last disabled at (7138): [<ffffffff81532fe0>] vprintk_emit.part.0+0x510/0x5c0 softirqs last enabled at (6684): [<ffffffff813a9e4c>] handle_softirqs+0x50c/0x770 softirqs last disabled at (6671): [<ffffffff813aa1e4>] __irq_exit_rcu+0xc4/0x100 ---[ end trace 0000000000000000 ]--- [EXT4 FS bs=4096, gc=1, bpg=32768, ipg=32, mo=a842c018, mo2=0002] System zones: 0-1, 3-6 EXT4-fs (loop3): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000.