| From bippy-1.0.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-50064: zram: free secondary algorithms names |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| zram: free secondary algorithms names |
| |
| We need to kfree() secondary algorithms names when reset zram device that |
| had multi-streams, otherwise we leak memory. |
| |
| [senozhatsky@chromium.org: kfree(NULL) is legal] |
| |
| The Linux kernel CVE team has assigned CVE-2024-50064 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.2 with commit 001d9273570115b2eb360d5452bbc46f6cc063a1 and fixed in 6.6.57 with commit 6272936fd242ca1f784c3e21596dfb3859dff276 |
| Issue introduced in 6.2 with commit 001d9273570115b2eb360d5452bbc46f6cc063a1 and fixed in 6.11.4 with commit ef35cc0d15b89dd013e1bb829fe97db7b1ab79eb |
| Issue introduced in 6.2 with commit 001d9273570115b2eb360d5452bbc46f6cc063a1 and fixed in 6.12 with commit 684826f8271ad97580b138b9ffd462005e470b99 |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2024-50064 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/block/zram/zram_drv.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/6272936fd242ca1f784c3e21596dfb3859dff276 |
| https://git.kernel.org/stable/c/ef35cc0d15b89dd013e1bb829fe97db7b1ab79eb |
| https://git.kernel.org/stable/c/684826f8271ad97580b138b9ffd462005e470b99 |
