loop6: detected capacity change from 0 to 15 watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.6:11585] Modules linked in: irq event stamp: 2513299 hardirqs last enabled at (2513298): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2513299): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2512368): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2512383): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 11585 Comm: syz-executor.6 Not tainted 6.13.0-rc1-next-20241204 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x80 Code: 7e 60 e8 a3 ff ff ff 31 c0 e9 2c 16 35 03 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 34 24 65 48 8b 15 a0 c6 b1 7e 65 8b 05 a1 c6 b1 RSP: 0018:ffff88806ce09bd0 EFLAGS: 00000296 RAX: 0000000000000000 RBX: ffffc9000077b1b8 RCX: ffffffff83280d57 RDX: 0000000000000040 RSI: ffffc9000077b1b8 RDI: ffff88800ea38c40 RBP: ffff88800ea38c40 R08: 0000000000000000 R09: ffffed1001d471e8 R10: 000000000000000b R11: 0000000000000001 R12: 0000000000000040 R13: 000000000000000c R14: ffffc9000077b1c0 R15: 000000000000000c FS: 00007fc249418700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcb7122fe8 CR3: 000000003ed96000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: e1000_unmap_and_free_tx_resource+0x1e/0x200 e1000_clean+0x337/0x2540 __napi_poll+0xb9/0x540 net_rx_action+0xa08/0xe00 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__slab_free+0x7f/0x310 Code: c1 e8 1f 4d 85 ed 66 89 5c 24 58 41 89 c6 41 0f 94 c2 66 85 db 74 05 45 84 d2 74 05 45 84 f6 74 42 41 8b 7f 08 4c 8b 4c 24 58 <4c> 89 ea 4c 89 e6 4c 8b 44 24 20 e8 f1 9f ff ff 84 c0 74 9d 4c 89 RSP: 0018:ffff8880422ff340 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00000000000d0007 RCX: 00000000000d0008 RDX: ffff888015f05a68 RSI: ffffea000057c140 RDI: 0000000000089800 RBP: ffff8880422ff3e0 R08: 0000000000000001 R09: 00000000000d0007 R10: ffffea000057c100 R11: 0000000000000000 R12: ffffea000057c140 R13: ffff888015f05940 R14: 0000000000000000 R15: ffff888008c4f780 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_kmalloc+0x6f/0x90 rtnl_newlink+0xd0/0x1dc0 rtnetlink_rcv_msg+0x9c8/0xfc0 netlink_rcv_skb+0x15d/0x450 netlink_unicast+0x547/0x800 netlink_sendmsg+0x8a2/0xd80 ____sys_sendmsg+0xac5/0xc80 ___sys_sendmsg+0x110/0x1b0 __sys_sendmsg+0x151/0x200 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc24bea2b19 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:00007fc249418188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fc24bfb5f60 RCX: 00007fc24bea2b19 RDX: 0000000000000000 RSI: 0000000020001480 RDI: 0000000000000007 RBP: 00007fc24befcf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcae7428bf R14: 00007fc249418300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 netlink: 'syz-executor.6': attribute type 4 has an invalid length. netlink: 'syz-executor.1': attribute type 10 has an invalid length. loop5: detected capacity change from 0 to 10 loop6: detected capacity change from 0 to 15 netlink: 'syz-executor.6': attribute type 4 has an invalid length. audit: type=1326 audit(1733356316.334:13): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=11670 comm="syz-executor.3" exe="/syz-executor.3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f1322f2db19 code=0x0 loop6: detected capacity change from 0 to 592 netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. ---------------- Code disassembly (best guess): 0: 7e 60 jle 0x62 2: e8 a3 ff ff ff callq 0xffffffaa 7: 31 c0 xor %eax,%eax 9: e9 2c 16 35 03 jmpq 0x335163a e: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1) 15: 00 00 00 00 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: 90 nop 27: 90 nop 28: 90 nop 29: 90 nop * 2a: f3 0f 1e fa endbr64 <-- trapping instruction 2e: 48 8b 34 24 mov (%rsp),%rsi 32: 65 48 8b 15 a0 c6 b1 mov %gs:0x7eb1c6a0(%rip),%rdx # 0x7eb1c6da 39: 7e 3a: 65 gs 3b: 8b .byte 0x8b 3c: 05 .byte 0x5 3d: a1 .byte 0xa1 3e: c6 (bad) 3f: b1 .byte 0xb1