Kernel panic - not syncing: kernel: panic_on_warn set ... CPU: 3 UID: 0 PID: 25278 Comm: syz.5.5524 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x3d/0x1f0 lib/dump_stack.c:120 vpanic+0x640/0x6f0 kernel/panic.c:489 panic+0xca/0xd0 kernel/panic.c:626 check_panic_on_warn kernel/panic.c:376 [inline] check_panic_on_warn+0xab/0xb0 kernel/panic.c:371 __warn+0xf6/0x3c0 kernel/panic.c:897 __report_bug lib/bug.c:195 [inline] report_bug+0x3c3/0x580 lib/bug.c:215 handle_bug+0x184/0x210 arch/x86/kernel/traps.c:338 exc_invalid_op+0x17/0x50 arch/x86/kernel/traps.c:392 asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:616 RIP: 0010:rate_control_rate_init+0x5c0/0x720 net/mac80211/rate.c:53 Code: 48 8d 35 00 00 00 00 e8 8e d1 bd f6 e8 89 f9 c7 f6 e9 25 fe ff ff e8 5f de e1 f6 90 0f 0b 90 e9 17 fe ff ff e8 51 de e1 f6 90 <0f> 0b 90 eb b1 e8 46 de e1 f6 e8 e1 c4 c6 f6 31 ff 89 c3 89 c6 e8 RSP: 0018:ffffc900030671f8 EFLAGS: 00010287 RAX: 0000000000000699 RBX: ffff88806e1c0000 RCX: ffffc90026577000 RDX: 0000000000080000 RSI: ffffffff8adadbaf RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff88805bc47200 R13: ffff8880751e8e80 R14: ffff88806da54000 R15: 0000000000000000 rate_control_rate_init_all_links+0x76/0x1e0 net/mac80211/rate.c:86 sta_apply_auth_flags.constprop.0+0x4bb/0x510 net/mac80211/cfg.c:1942 sta_apply_parameters+0xca8/0x1930 net/mac80211/cfg.c:2320 ieee80211_add_station+0x3fa/0x6c0 net/mac80211/cfg.c:2386 rdev_add_station net/wireless/rdev-ops.h:201 [inline] nl80211_new_station+0x1502/0x1c90 net/wireless/nl80211.c:8777 genl_family_rcv_msg_doit+0x209/0x2f0 net/netlink/genetlink.c:1115 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline] genl_rcv_msg+0x55c/0x800 net/netlink/genetlink.c:1210 netlink_rcv_skb+0x158/0x420 net/netlink/af_netlink.c:2552 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x5aa/0x870 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x8c8/0xdd0 net/netlink/af_netlink.c:1896 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] ____sys_sendmsg+0xa98/0xc70 net/socket.c:2630 ___sys_sendmsg+0x134/0x1d0 net/socket.c:2684 __sys_sendmsg+0x16d/0x220 net/socket.c:2716 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0x7c/0x300 arch/x86/entry/syscall_32.c:306 do_fast_syscall_32+0x32/0x80 arch/x86/entry/syscall_32.c:331 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf704d579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f543d55c EFLAGS: 00000296 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000080001080 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds.. ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 ret 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi