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sshfs: reset SReq->reqid field to fix double-free of request ids

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This commit is contained in:
aiju 2017-04-28 18:45:32 +00:00
parent 5ce3f70f72
commit 7cc9d944df
1 changed files with 3 additions and 2 deletions
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5
sys/src/cmd/sshfs.c
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@ -938,18 +938,19 @@ recvproc(void *)
} }
id = GET4(rxpkt + 1); id = GET4(rxpkt + 1);
if(id >= MAXREQID){ if(id >= MAXREQID){
fprint(2, "sshfs: received response with id out of range, %d > %d\n", id, MAXREQID); fprint(2, "sshfs: received %Σ response with id out of range, %d > %d\n", t, id, MAXREQID);
continue; continue;
} }
qlock(&sreqidlock); qlock(&sreqidlock);
r = sreqrd[id]; r = sreqrd[id];
if(r != nil){ if(r != nil){
sreqrd[id] = nil; sreqrd[id] = nil;
r->reqid = -1;
rwakeup(&sreqidrend); rwakeup(&sreqidrend);
} }
qunlock(&sreqidlock); qunlock(&sreqidlock);
if(r == nil){ if(r == nil){
fprint(2, "sshfs: received response to non-existent request (req id = %d)\n", id); fprint(2, "sshfs: received %Σ response to non-existent request (req id = %d)\n", t, id);
continue; continue;
} }
if(r->closefid != nil){ if(r->closefid != nil){