Re: kernel panic: audit: rate limit exceeded

Hello, syzbot found the following crash on: HEAD commit: 0c0ddd6a Merge tag 'linux-watchdog-5.6-rc3' of git://www.l.. git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=12c8a3d9e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=3b8906eb6a7d6028 dashboard link: https://syzkaller.appspot.com/bug?extid=72461ac44b36c98f58e5 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14c803ede00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17237de9e00000 The bug was bisected to: commit 28b75415ad19fef232d8daab4d5de17d753f0b36 Author: Romain Perier <romain.perier(a)collabora.com&gt; Date: Wed Aug 23 07:16:51 2017 +0000 wireless: ipw2200: Replace PCI pool old API bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12dbfe09e00000 final crash: https://syzkaller.appspot.com/x/report.txt?x=11dbfe09e00000 console output: https://syzkaller.appspot.com/x/log.txt?x=16dbfe09e00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+72461ac44b36c98f58e5(a)syzkaller.appspotmail.com Fixes: 28b75415ad19 ("wireless: ipw2200: Replace PCI pool old API") audit: audit_lost=1 audit_rate_limit=2 audit_backlog_limit=0 Kernel panic - not syncing: audit: rate limit exceeded CPU: 1 PID: 10031 Comm: syz-executor626 Not tainted 5.6.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 audit_panic.cold+0x32/0x32 kernel/audit.c:307 audit_log_lost kernel/audit.c:377 [inline] audit_log_lost+0x8b/0x180 kernel/audit.c:349 audit_log_end+0x23c/0x2b0 kernel/audit.c:2322 audit_log_config_change+0xcc/0xf0 kernel/audit.c:396 audit_receive_msg+0x2246/0x28b0 kernel/audit.c:1277 audit_receive+0x114/0x230 kernel/audit.c:1513 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x59e/0x7e0 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:672 ____sys_sendmsg+0x753/0x880 net/socket.c:2343 ___sys_sendmsg+0x100/0x170 net/socket.c:2397 __sys_sendmsg+0x105/0x1d0 net/socket.c:2430 __do_sys_sendmsg net/socket.c:2439 [inline] __se_sys_sendmsg net/socket.c:2437 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2437 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x441239 Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 9b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffd68c9df48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441239 RDX: 0000000000000000 RSI: 00000000200006c0 RDI: 0000000000000003 RBP: 0000000000018b16 R08: 00000000004002c8 R09: 00000000004002c8 R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000402060 R13: 00000000004020f0 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..