syzbot


Fatal trap 9: general protection fault in sbfree

Status: auto-closed as invalid on 2019/09/30 22:38
Reported-by: syzbot+dc6a51be5d26763ffda0@syzkaller.appspotmail.com
First crash: 1847d, last: 1841d

Sample crash report:
Fatal trap 9: general protection fault while in kernel mode
cpuid = 1; apic id = 01
instruction pointer	= 0x20:0xffffffff8114efc5
stack pointer	        = 0x28:0xfffffe0021286590
frame pointer	        = 0x28:0xfffffe00212865c0
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		= 2129 (syz-executor.2)
trap number		= 9
panic: general protection fault
cpuid = 1
time = 1554331047
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0021286260
vpanic() at vpanic+0x1e0/frame 0xfffffe00212862c0
panic() at panic+0x43/frame 0xfffffe0021286320
trap_fatal() at trap_fatal+0x4c6/frame 0xfffffe00212863a0
trap() at trap+0xba/frame 0xfffffe00212864c0
calltrap() at calltrap+0x8/frame 0xfffffe00212864c0
--- trap 0x9, rip = 0xffffffff8114efc5, rsp = 0xfffffe0021286590, rbp = 0xfffffe00212865c0 ---
sbfree() at sbfree+0xa5/frame 0xfffffe00212865c0
sbcut_internal() at sbcut_internal+0xf0/frame 0xfffffe0021286610
sbrelease_internal() at sbrelease_internal+0x9c/frame 0xfffffe0021286650
sofree() at sofree+0x492/frame 0xfffffe00212866b0
soclose() at soclose+0x5b3/frame 0xfffffe0021286730
_fdrop() at _fdrop+0x3a/frame 0xfffffe0021286760
closef() at closef+0x27d/frame 0xfffffe00212867f0
fdescfree_fds() at fdescfree_fds+0xbd/frame 0xfffffe0021286840
fdescfree() at fdescfree+0x58a/frame 0xfffffe0021286900
exit1() at exit1+0x780/frame 0xfffffe0021286970
sys_sys_exit() at sys_sys_exit+0xd/frame 0xfffffe0021286980
amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe0021286ab0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0021286ab0
--- syscall (1, FreeBSD ELF64, sys_sys_exit), rip = 0x44f3ca, rsp = 0x7fffffffec58, rbp = 0 ---
KDB: enter: panic
[ thread pid 2129 tid 100627 ]
Stopped at      kdb_enter+0x6a: movq    $0,kdb_why

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/04/03 22:37 freebsd 11f8ca01b7f3 d6fc4177 console log report ci-freebsd-main
2019/03/28 11:36 freebsd f5682a5ff578 f94f56fe console log report ci-freebsd-main
* Struck through repros no longer work on HEAD.