syzbot


kernel panic: Damn Damn! Unhandled trap in the kernel! (3)

Status: fixed on 2019/05/02 02:02
Reported-by: syzbot+871c0525c81bbe0e93a5@syzkaller.appspotmail.com
Fix commit: 9691b1c8dbbd cap: fix format-string vulnerability
First crash: 2031d, last: 2031d
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
akaros kernel panic: Damn Damn! Unhandled trap in the kernel! (5) syz 41 1342d 1960d 0/1 upstream: reported syz repro on 2019/07/12 04:31
akaros kernel panic: Damn Damn! Unhandled trap in the kernel! C 97385 2052d 2321d 1/1 fixed on 2019/04/11 01:13
akaros kernel panic: Damn Damn! Unhandled trap in the kernel! (4) syz 3 2025d 2029d 1/1 fixed on 2019/05/09 14:48
akaros kernel panic: Damn Damn! Unhandled trap in the kernel! (2) C 2 2039d 2039d 1/1 fixed on 2019/04/30 00:21

Sample crash report:
kernel panic at kern/arch/x86/trap.c:628, from core 0: Damn Damn!  Unhandled trap in the kernel!
HW TRAP frame at 0xfffffff000070920 on core 0
  rax  0x87fffffff000070e
  rbx  0xfffffff000070cd9
  rcx  0x0000000000000000
  rdx  0xffff8000032439cb
  rbp  0xfffffff000070a08
  rsi  0xfffffff000070a88
  rdi  0x0000000000000000
  r8   0x0000000000000001
  r9   0x0000000000000030
  r10  0x0000000000000080
  r11  0x0000000000000000
  r12  0xffffffffc2048840
  r13  0xfffffff000070a88
  r14  0xfffffff000070c49
  r15  0xfffffff000070c49
  trap 0x0000000d General Protection
  gsbs 0xffffffffc8e37b00
  fsbs 0x0000000000000000
  err  0x--------00000000
  rip  0xffffffffc20194b6
  cs   0x------------0008
  flag 0x0000000000010282
  rsp  0xfffffff0000709e8
  ss   0x------------0010
Backtrace of kernel context on Core 0:
#01 [<0xffffffffc20194b6>] in printchan at src/net/eipconv.c:176
#02 [<0xffffffffc2048aaf>] in vprintfmt at src/printfmt.c:128
#03 [<0xffffffffc2049142>] in vsnprintf at src/printfmt.c:309
#04 [<0xffffffffc2058369>] in vset_errstr at src/syscall.c:509
#05 [<0xffffffffc205849b>] in set_error at src/syscall.c:542
#06 [<0xffffffffc207502b>] in capwrite at drivers/dev/capability.c:216
#07 [<0xffffffffc2040649>] in rwrite at src/ns/sysfile.c:1117
#08 [<0xffffffffc204089b>] in syswrite at src/ns/sysfile.c:1135
#09 [<0xffffffffc2059219>] in sys_write at src/syscall.c:1785
#10 [<0xffffffffc2059d79>] in syscall at src/syscall.c:2577
#11 [<0xffffffffc205a928>] in run_local_syscall at src/syscall.c:2614
#12 [<0xffffffffc205ae69>] in prep_syscalls at src/syscall.c:2634
#13 [<0xffffffffc20ac752>] in sysenter_callwrapper at arch/x86/trap.c:877

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/05/01 20:27 akaros 95e5d955a8e4 7516d9fa .config console log report syz C ci-akaros-main
2019/05/02 01:38 akaros 95e5d955a8e4 7516d9fa .config console log report ci-akaros-main
2019/05/01 20:12 akaros 95e5d955a8e4 7516d9fa .config console log report ci-akaros-main
* Struck through repros no longer work on HEAD.