From: Joel Ebel <jbebel@xxxxxxxxxx> Increase group buffer size geometrically rather than linearly when its found to be small. This prevents package to eat the cpu if you have large groups. --- CHANGELOG | 1 + lib/mounts.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/CHANGELOG b/CHANGELOG index 64eb0926..b72711cb 100644 --- a/CHANGELOG +++ b/CHANGELOG @@ -16,6 +16,7 @@ xx/xx/2019 autofs-5.1.6 - Update README. - fix additional typing errors. - update autofs(8) offset map entry update description. +- increase group buffer size geometrically. 30/10/2018 autofs-5.1.5 - fix flag file permission. diff --git a/lib/mounts.c b/lib/mounts.c index e4092d2f..5a8e8cdb 100644 --- a/lib/mounts.c +++ b/lib/mounts.c @@ -1539,7 +1539,7 @@ void set_tsd_user_vars(unsigned int logopt, uid_t uid, gid_t gid) status = getgrgid_r(gid, pgr, gr_tmp, tmplen, ppgr); if (status != ERANGE) break; - tmplen += grplen; + tmplen *= 2; /* Don't tempt glibc to alloca() larger than is (likely) * available on the stack if limit-getgrgid-size is enabled.
