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| author | Samuel Sapalski | 2021-03-03 16:31:22 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2021-03-12 10:45:10 +0100 |
| commit | f25d254dfd4243698c31a4f3153d4ac72aa9e9bd (patch) | |
| tree | 0d4f56adcaf9880ba2189f88a291cefd2ec93117 /archival/libarchive/unsafe_prefix.c | |
| parent | cbfdeba6609b702432886ecf3e2786818a2bc55b (diff) | |
| download | busybox-f25d254dfd4243698c31a4f3153d4ac72aa9e9bd.zip busybox-f25d254dfd4243698c31a4f3153d4ac72aa9e9bd.tar.gz | |
decompress_gunzip: Fix DoS if gzip is corrupt
On certain corrupt gzip files, huft_build will set the error bit on
the result pointer. If afterwards abort_unzip is called huft_free
might run into a segmentation fault or an invalid pointer to
free(p).
In order to mitigate this, we check in huft_free if the error bit
is set and clear it before the linked list is freed.
Signed-off-by: Samuel Sapalski <samuel.sapalski@nokia.com>
Signed-off-by: Peter Kaestle <peter.kaestle@nokia.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'archival/libarchive/unsafe_prefix.c')
0 files changed, 0 insertions, 0 deletions