------------[ cut here ]------------ WARNING: CPU: 1 PID: 18004 at net/ipv4/ipmr.c:440 ipmr_rules_exit+0x13a/0x1c0 Modules linked in: CPU: 1 UID: 0 PID: 18004 Comm: syz-executor.0 Not tainted 6.13.0-rc1-next-20241206 #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 0c 44 a3 00 e8 f7 cd 6d fd 90 <0f> 0b 90 eb 93 e8 ec cd 6d fd 0f b6 2d 99 e7 38 02 31 ff 89 ee e8 RSP: 0018:ffff8880159f78b8 EFLAGS: 00010212 RAX: 0000000000017192 RBX: ffff8880319a5c00 RCX: ffffc90006007000 RDX: 0000000000040000 RSI: ffffffff840412d9 RDI: 0000000000000005 RBP: ffff888030594000 R08: 0000000000000000 R09: ffffed1006334ba8 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8880319a6400 R14: ffff8880319a5c00 R15: fffffbfff0c50f58 FS: 00007fdcc0a12700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fe582b3490 CR3: 000000000e4ee000 CR4: 0000000000350ef0 Call Trace: FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 UID: 0 PID: 18014 Comm: syz-executor.2 Not tainted 6.13.0-rc1-next-20241206 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 ipmr_net_exit_batch+0x53/0xa0 Call Trace: dump_stack_lvl+0xfa/0x120 should_fail_ex+0x4b1/0x5b0 ops_exit_list+0x12b/0x180 setup_net+0x492/0x7a0 should_failslab+0xc2/0x120 kmem_cache_alloc_noprof+0x60/0x3d0 __kernfs_new_node+0xd4/0x850 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x26c0/0x70e0 kernfs_new_node+0x18b/0x250 kernel_clone+0xeb/0x850 __kernfs_create_file+0x55/0x360 sysfs_add_file_mode_ns+0x21c/0x440 internal_create_group+0x573/0xeb0 __do_sys_clone3+0x1d9/0x260 loop_configure+0x967/0x1220 lo_ioctl+0x8cc/0x18f0 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdcc34bdb19 blkdev_ioctl+0x27e/0x6d0 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:00007fdcc0a12188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007fdcc35d1020 RCX: 00007fdcc34bdb19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 __x64_sys_ioctl+0x1a7/0x210 RBP: 00007fdcc3517f6d R08: 0000000000000000 R09: 0000000000000000 do_syscall_64+0xbf/0x1d0 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 entry_SYSCALL_64_after_hwframe+0x77/0x7f R13: 00007ffcf984bbcf R14: 00007fdcc0a12300 R15: 0000000000022000 RIP: 0033:0x7fbe5b6d68d7 Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 a4 54 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 00 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 irq event stamp: 7753 RSP: 002b:00007fbe58c4bf48 EFLAGS: 00000246 hardirqs last enabled at (7763): [] irqentry_exit+0x3b/0x90 ORIG_RAX: 0000000000000010 hardirqs last disabled at (7772): [] sysvec_apic_timer_interrupt+0xf/0x80 RAX: ffffffffffffffda RBX: 00007fbe5b720970 RCX: 00007fbe5b6d68d7 softirqs last enabled at (7702): [] handle_softirqs+0x50c/0x770 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 softirqs last disabled at (7687): [] __irq_exit_rcu+0xc4/0x100 RBP: 0000000000000005 R08: 0000000000000000 R09: ffffffffffffffff ---[ end trace 0000000000000000 ]--- R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000004 R14: 0000000020000230 R15: 0000000000000002 loop2: detected capacity change from 0 to 1 FAT-fs (loop2): Directory bread(block 5) failed FAT-fs (loop2): Directory bread(block 6) failed FAT-fs (loop2): Directory bread(block 7) failed FAT-fs (loop2): Directory bread(block 8) failed Option ' ' to dns_resolver key: bad/missing value Option ' ' to dns_resolver key: bad/missing value ---------------- Code disassembly (best guess), 1 bytes skipped: 0: ff c3 inc %ebx 2: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 9: 00 00 00 c: 0f 1f 40 00 nopl 0x0(%rax) 10: 48 89 f8 mov %rdi,%rax 13: 48 89 f7 mov %rsi,%rdi 16: 48 89 d6 mov %rdx,%rsi 19: 48 89 ca mov %rcx,%rdx 1c: 4d 89 c2 mov %r8,%r10 1f: 4d 89 c8 mov %r9,%r8 22: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 27: 0f 05 syscall * 29: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 2f: 73 01 jae 0x32 31: c3 retq 32: 48 c7 c1 bc ff ff ff mov $0xffffffffffffffbc,%rcx 39: f7 d8 neg %eax 3b: 64 89 01 mov %eax,%fs:(%rcx) 3e: 48 rex.W