| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-26582: net: tls: fix use-after-free with partial reads and async decrypt |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net: tls: fix use-after-free with partial reads and async decrypt |
| |
| tls_decrypt_sg doesn't take a reference on the pages from clear_skb, |
| so the put_page() in tls_decrypt_done releases them, and we trigger |
| a use-after-free in process_rx_list when we try to read from the |
| partially-read skb. |
| |
| The Linux kernel CVE team has assigned CVE-2024-26582 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.0 with commit fd31f3996af2627106e22a9f8072764fede51161 and fixed in 6.1.79 with commit 20b4ed034872b4d024b26e2bc1092c3f80e5db96 |
| Issue introduced in 6.0 with commit fd31f3996af2627106e22a9f8072764fede51161 and fixed in 6.6.18 with commit d684763534b969cca1022e2a28645c7cc91f7fa5 |
| Issue introduced in 6.0 with commit fd31f3996af2627106e22a9f8072764fede51161 and fixed in 6.7.6 with commit 754c9bab77a1b895b97bd99d754403c505bc79df |
| Issue introduced in 6.0 with commit fd31f3996af2627106e22a9f8072764fede51161 and fixed in 6.8 with commit 32b55c5ff9103b8508c1e04bfa5a08c64e7a925f |
| |
| 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-2024-26582 |
| 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: |
| net/tls/tls_sw.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/20b4ed034872b4d024b26e2bc1092c3f80e5db96 |
| https://git.kernel.org/stable/c/d684763534b969cca1022e2a28645c7cc91f7fa5 |
| https://git.kernel.org/stable/c/754c9bab77a1b895b97bd99d754403c505bc79df |
| https://git.kernel.org/stable/c/32b55c5ff9103b8508c1e04bfa5a08c64e7a925f |
