https://vulnerability.circl.lu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Thu, 01 Oct 2026 21:41:54 +0000 https://vulnerability.circl.lu/vuln/cve-2026-23044 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>PM: hibernate: Fix crash when freeing invalid crypto compressor</p> <p>When crypto_alloc_acomp() fails, it returns an ERR_PTR value, not NULL.</p> <p>The cleanup code in save_compressed_image() and load_compressed_image() unconditionally calls crypto_free_acomp() without checking for ERR_PTR, which causes crypto_acomp_tfm() to dereference an invalid pointer and crash the kernel.</p> <p>This can be triggered when the compression algorithm is unavailable (e.g., CONFIG_CRYPTO_LZO not enabled).</p> <p>Fix by adding IS_ERR_OR_NULL() checks before calling crypto_free_acomp() and acomp_request_free(), similar to the existing kthread_stop() check.</p> <p>[ rjw: Added 2 empty code lines ]</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>PM: hibernate: Fix crash when freeing invalid crypto compressor</p> <p>When crypto_alloc_acomp() fails, it returns an ERR_PTR value, not NULL.</p> <p>The cleanup code in save_compressed_image() and load_compressed_image() unconditionally calls crypto_free_acomp() without checking for ERR_PTR, which causes crypto_acomp_tfm() to dereference an invalid pointer and crash the kernel.</p> <p>This can be triggered when the compression algorithm is unavailable (e.g., CONFIG_CRYPTO_LZO not enabled).</p> <p>Fix by adding IS_ERR_OR_NULL() checks before calling crypto_free_acomp() and acomp_request_free(), similar to the existing kthread_stop() check.</p> <p>[ rjw: Added 2 empty code lines ]</p> https://vulnerability.circl.lu/vuln/cve-2026-23044