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| author | Samuel Sapalski | 2021-03-03 16:31:22 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2021-05-03 14:50:09 +0200 |
| commit | 23dd1c75b7457f08f1c55a95f3c2fb6faf742562 (patch) | |
| tree | 59c53994c864bd1ca66bd12af247da0f9ef0ab33 /networking/udhcpc.c | |
| parent | 89358a7131d3e75c74af834bb117b4fad7914983 (diff) | |
| download | busybox-23dd1c75b7457f08f1c55a95f3c2fb6faf742562.zip busybox-23dd1c75b7457f08f1c55a95f3c2fb6faf742562.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 'networking/udhcpc.c')
0 files changed, 0 insertions, 0 deletions