Gitweb: https://sourceware.org/git/?p=lvm2.git;a=commitdiff;h=7232458b6c114cc83b471f... Commit: 7232458b6c114cc83b471f08abc49fd1673831c4 Parent: 8bea252a636ff0de2266c1ce760b3a6047f0ff2f Author: Zdenek Kabelac zkabelac@redhat.com AuthorDate: Tue Jun 25 15:21:46 2019 +0200 Committer: Zdenek Kabelac zkabelac@redhat.com CommitterDate: Tue Jun 25 17:33:47 2019 +0200
cov: validate pagesize is not negative
As _init_free_list() cannot accept negative numbers --- lib/device/bcache.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/lib/device/bcache.c b/lib/device/bcache.c index dac8be6..ccf0046 100644 --- a/lib/device/bcache.c +++ b/lib/device/bcache.c @@ -1040,6 +1040,11 @@ struct bcache *bcache_create(sector_t block_sectors, unsigned nr_cache_blocks, unsigned max_io = engine->max_io(engine); long pgsize = sysconf(_SC_PAGESIZE);
+ if ((pgsize = sysconf(_SC_PAGESIZE)) < 0) { + log_warn("bcache cannot read pagesize."); + return NULL; + } + if (!nr_cache_blocks) { log_warn("bcache must have at least one cache block"); return NULL;
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