syzbot


corrupted report

Status: closed as dup on 2019/08/27 18:20
Reported-by: syzbot+80f0456bb602e8a7030d@syzkaller.appspotmail.com
First crash: 1087d, last: 1074d
Duplicate of (1):
Title Repro Cause bisect Fix bisect Count Last Reported
panic: malloc: allocation too large, type = 2, size = ADDR (2) C 16842 1073d 1091d
similar bugs (5):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd corrupted report (5) 3 346d 346d 0/3 closed as dup on 2021/09/07 12:09
openbsd corrupted report (6) 179 11h32m 334d 0/3 upstream: reported on 2021/09/18 20:58
openbsd corrupted report (4) 21 575d 744d 0/3 auto-closed as invalid on 2021/04/20 22:19
openbsd corrupted report (2) 17 1021d 1070d 0/3 closed as dup on 2019/09/13 20:10
openbsd corrupted report (3) 6058 744d 1006d 0/3 closed as dup on 2019/11/17 14:10

Sample crash report:
panic: malloc: allocation too large, type = 2, size = 18446744073709550976

Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*387994  45685      0           0  0x4000000    0  syz-executor.1
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398
panic() at panic+0x15c sys/kern/subr_prf.c:207
malloc(fffffffffffffd80,2,a) at malloc+0x9c9 sys/kern/kern_malloc.c:344
vm_get_info(ffff800015946680) at vm_get_info+0x9a
VOP_IOCTL(fffffd80361865b0,c0185603,ffff800015946680,1,fffffd803f7c68a0,ffff800014f35160) at VOP_IOCTL+0x88 sys/kern/vfs_vops.c:291
vn_ioctl(fffffd802f8e8108,c0185603,ffff800015946680,ffff800014f35160) at vn_ioctl+0xb7 sys/kern/vfs_vnops.c:524
sys_ioctl(ffff800014f35160,ffff800015946798,ffff8000159467e0) at sys_ioctl+0x5b9
syscall(ffff800015946860) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555
Xsyscall(6,0,ffffffffffffff53,0,3,1a2a989c1b0) at Xsyscall+0x128
end of kernel
end trace frame: 0x1a5a4399350, count: 6
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.
ddb> 
ddb> set $lines = 0
ddb> serialport: VM disconnected.

Crashes (7):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-openbsd-main 2019/09/09 18:14 openbsd 1af766eb9cce a60cb4cd .config log report
ci-openbsd-multicore 2019/09/06 04:01 openbsd 87bcbcf52bc3 c16be727 .config log report
ci-openbsd-multicore 2019/09/05 21:20 openbsd f69acb9a9285 bf6bcce4 .config log report
ci-openbsd-multicore 2019/08/31 04:12 openbsd 2ff3873d0ce9 bcd7bcc2 .config log report
ci-openbsd-multicore 2019/08/30 15:00 openbsd 704010f9f112 9adfa876 .config log report
ci-openbsd-multicore 2019/08/28 18:50 openbsd 9148dea52109 1eb076e9 .config log report
ci-openbsd-main 2019/08/27 17:34 openbsd f26588393b60 d21c5d9d .config log report