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| author | Jarkko Sakkinen <jarkko@kernel.org> | 2026-06-01 23:11:54 +0300 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko@kernel.org> | 2026-06-15 15:19:12 +0300 |
| commit | cb481e59ea6cae3b7796ac1d7a22b6b24c3f3c0b (patch) | |
| tree | aec3ac8cebd4a4572bb105559233fe00a3ce3f39 /include/linux/memory | |
| parent | 0e0611827f3349d0a2ac121c023a6d3260dcecdb (diff) | |
| download | linux-cb481e59ea6cae3b7796ac1d7a22b6b24c3f3c0b.tar.xz | |
KEYS: fix overflow in keyctl_pkey_params_get_2()
The length for the internal output buffer is calculated incorrectly, which
can result overflow when a too small buffer is provided.
Fix the bug by allocating internal output with the size of the maximum
length of the cryptographic primitive instead of caller provided size.
Link: https://lore.kernel.org/keyrings/20260531024914.3712130-1-jarkko@kernel.org/
Cc: stable@vger.kernel.org # v4.20+
Fixes: 00d60fd3b932 ("KEYS: Provide keyctls to drive the new key type ops for asymmetric keys [ver #2]")
Reported-by: Alessandro Groppo <ale.grpp@gmail.com>
Tested-by: Alessandro Groppo <ale.grpp@gmail.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Diffstat (limited to 'include/linux/memory')
0 files changed, 0 insertions, 0 deletions