syzbot


pool: cpu free list modified: mbufpl (2)

Status: auto-obsoleted due to no activity on 2022/09/22 19:57
Reported-by: syzbot+06f91a7be688c82810b9@syzkaller.appspotmail.com
First crash: 884d, last: 884d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
openbsd pool: cpu free list modified: mbufpl syz 15863 1572d 1859d 3/3 fixed on 2020/08/05 06:16
openbsd pool: cpu free list modified: mbufpl (4) 5 103d 223d 0/3 auto-obsoleted due to no activity on 2024/11/11 00:29
openbsd pool: cpu free list modified: mbufpl (3) 1 397d 397d 0/3 auto-obsoleted due to no activity on 2024/01/22 11:03

Sample crash report:
panic: pool_cache_item_magic_check: mbufpl cpu free list modified: item addr 0xfffffd805eabfe00+16 0x0!=0x88ba5727dbeb6a5b
Starting stack trace...
panic(ffffffff8259c3be) at panic+0x16b sys/kern/subr_prf.c:233
pool_cache_get(ffffffff82a40b18) at pool_cache_get+0x313 sys/kern/subr_pool.c:1899
pool_get(ffffffff82a40b18,2) at pool_get+0x8f sys/kern/subr_pool.c:575
m_get(2,3) at m_get+0x63 sys/kern/uipc_mbuf.c:248
sbappendaddr(fffffd805fcc9978,fffffd805fcc9a30,ffffffff828ee8d0,fffffd806541ed00,0) at sbappendaddr+0x2da sys/kern/uipc_socket2.c:761
rtm_sendup(fffffd805fcc9978,fffffd806804b800) at rtm_sendup+0xdc sys/net/rtsock.c:600
route_input(fffffd806804b800,fffffd8066f90998,0) at route_input+0x197 sys/net/rtsock.c:578
route_output(fffffd806804b800,fffffd8066f90998,0,0) at route_output+0x8c8 sys/net/rtsock.c:898
route_usrreq(fffffd8066f90998,9,fffffd806804b800,0,0,ffff8000212122a0) at route_usrreq+0x398 sys/net/rtsock.c:283
sosend(fffffd8066f90998,0,ffff800024ca6b00,0,0,80) at sosend+0x61b sys/kern/uipc_socket.c:585
sendit(ffff8000212122a0,4,ffff800024ca6c00,0,ffff800024ca6cf0) at sendit+0x65d sys/kern/uipc_syscalls.c:653
sys_sendto(ffff8000212122a0,ffff800024ca6c98,ffff800024ca6cf0) at sys_sendto+0x80 sys/kern/uipc_syscalls.c:520
syscall(ffff800024ca6d60) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800024ca6d60) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xadfaa07fca0, count: 243
End of stack trace.

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2022/06/24 19:57 openbsd 6cd7ecd82903 a371c43c .config console log report ci-openbsd-multicore pool: cpu free list modified: mbufpl
* Struck through repros no longer work on HEAD.