syzbot


Fatal trap 9: general protection fault in memcmp

Status: auto-closed as invalid on 2019/10/25 08:40
Reported-by: syzbot+4ba2fabecb5e1e2e05df@syzkaller.appspotmail.com
First crash: 2032d, last: 2010d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
freebsd Fatal trap 9: general protection fault in memcmp (2) 1 1468d 1468d 0/2 closed as invalid on 2021/01/09 19:58

Sample crash report:
Fatal trap 9: general protection fault while in kernel mode
cpuid = 0; apic id = 00
instruction pointer	= 0x20:0xffffffff816ca6d1
stack pointer	        = 0x28:0xfffffe0026fd0540
frame pointer	        = 0x28:0xfffffe0026fd0540
code segment		= base 0x0, limit 0xfffff, type 0x1b
			= DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags	= interrupt enabled, resume, IOPL = 0
current process		= 3994 (syz-executor.1)
trap number		= 9
panic: general protection fault
cpuid = 0
time = 4170
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0026fd0210
vpanic() at vpanic+0x1e0/frame 0xfffffe0026fd0270
panic() at panic+0x43/frame 0xfffffe0026fd02d0
trap_fatal() at trap_fatal+0x4c6/frame 0xfffffe0026fd0350
trap() at trap+0xba/frame 0xfffffe0026fd0470
calltrap() at calltrap+0x8/frame 0xfffffe0026fd0470
--- trap 0x9, rip = 0xffffffff816ca6d1, rsp = 0xfffffe0026fd0540, rbp = 0xfffffe0026fd0540 ---
memcmp() at memcmp+0xa1/frame 0xfffffe0026fd0540
authunix_create() at authunix_create+0x25b/frame 0xfffffe0026fd0800
sys_nlm_syscall() at sys_nlm_syscall+0xed/frame 0xfffffe0026fd0980
amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe0026fd0ab0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0026fd0ab0
--- syscall (154, FreeBSD ELF64, sys_nlm_syscall), rip = 0x2000018d, rsp = 0x7fffdfffdeb8, rbp = 0xa ---
KDB: enter: panic
[ thread pid 3994 tid 100647 ]
Stopped at      kdb_enter+0x6a: movq    $0,kdb_why

Crashes (23):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/05/22 11:48 freebsd e2abb7b27ea6 40046286 console log report ci-freebsd-main
2019/05/22 02:08 freebsd e2abb7b27ea6 40046286 console log report ci-freebsd-main
2019/05/21 02:07 freebsd e2abb7b27ea6 40046286 console log report ci-freebsd-main
2019/05/15 10:51 freebsd 5834f8720468 bd4e3ac7 console log report ci-freebsd-main
2019/05/14 06:16 freebsd 29adbefa4782 ada3c44c console log report ci-freebsd-main
2019/05/11 23:31 freebsd 24c307c3c0ca 0637a7f0 console log report ci-freebsd-main
2019/05/09 13:44 freebsd c150a0f6fab9 1ab4c999 console log report ci-freebsd-main
2019/05/08 08:28 freebsd 5446f43efb61 a7383bfa console log report ci-freebsd-main
2019/05/08 05:09 freebsd 206ba4243146 a7383bfa console log report ci-freebsd-main
2019/05/06 15:07 freebsd 35bdc8c69993 d28f4ce5 console log report ci-freebsd-main
2019/05/06 00:01 freebsd 09419c83ec8b d28f4ce5 console log report ci-freebsd-main
2019/05/03 17:56 freebsd 8bebf2c3297f 1bfa09b9 console log report ci-freebsd-main
2019/05/02 07:22 freebsd 62dd3c74c047 1852eb18 console log report ci-freebsd-main
2019/05/02 04:33 freebsd b278d30ff05c 7516d9fa console log report ci-freebsd-main
2019/05/02 02:30 freebsd b278d30ff05c 7516d9fa console log report ci-freebsd-main
2019/05/01 21:15 freebsd b278d30ff05c 7516d9fa console log report ci-freebsd-main
2019/05/01 10:17 freebsd c2d2307dd816 618456b4 console log report ci-freebsd-main
2019/05/01 06:28 freebsd 219791b23e76 618456b4 console log report ci-freebsd-main
2019/04/30 20:14 freebsd 219791b23e76 618456b4 console log report ci-freebsd-main
2019/04/30 20:05 freebsd 219791b23e76 618456b4 console log report ci-freebsd-main
2019/04/30 07:23 freebsd 8d42a256bc31 20f16bef console log report ci-freebsd-main
2019/04/30 02:39 freebsd 8d42a256bc31 b617407b console log report ci-freebsd-main
2019/04/30 02:08 freebsd 8d42a256bc31 b617407b console log report ci-freebsd-main
* Struck through repros no longer work on HEAD.