| 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-2024-39489: ipv6: sr: fix memleak in seg6_hmac_init_algo |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ipv6: sr: fix memleak in seg6_hmac_init_algo |
| |
| seg6_hmac_init_algo returns without cleaning up the previous allocations |
| if one fails, so it's going to leak all that memory and the crypto tfms. |
| |
| Update seg6_hmac_exit to only free the memory when allocated, so we can |
| reuse the code directly. |
| |
| The Linux kernel CVE team has assigned CVE-2024-39489 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.10 with commit bf355b8d2c30a289232042cacc1cfaea4923936c and fixed in 4.19.316 with commit afd5730969aec960a2fee4e5ee839a6014643976 |
| Issue introduced in 4.10 with commit bf355b8d2c30a289232042cacc1cfaea4923936c and fixed in 5.4.278 with commit 4a3fcf53725b70010d1cf869a2ba549fed6b8fb3 |
| Issue introduced in 4.10 with commit bf355b8d2c30a289232042cacc1cfaea4923936c and fixed in 5.10.219 with commit daf341e0a2318b813427d5a78788c86f4a7f02be |
| Issue introduced in 4.10 with commit bf355b8d2c30a289232042cacc1cfaea4923936c and fixed in 5.15.161 with commit 61d31ac85b4572d11f8071855c0ccb4f32d76c0c |
| Issue introduced in 4.10 with commit bf355b8d2c30a289232042cacc1cfaea4923936c and fixed in 6.1.93 with commit 599a5654215092ac22bfc453f4fd3959c55ea821 |
| Issue introduced in 4.10 with commit bf355b8d2c30a289232042cacc1cfaea4923936c and fixed in 6.6.33 with commit 0e44d6cbe8de983470c3d2f978649783384fdcb6 |
| Issue introduced in 4.10 with commit bf355b8d2c30a289232042cacc1cfaea4923936c and fixed in 6.9.4 with commit f6a99ef4e056c20a138a95cc51332b2b96c8f383 |
| Issue introduced in 4.10 with commit bf355b8d2c30a289232042cacc1cfaea4923936c and fixed in 6.10 with commit efb9f4f19f8e37fde43dfecebc80292d179f56c6 |
| |
| 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-2024-39489 |
| 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/ipv6/seg6_hmac.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/afd5730969aec960a2fee4e5ee839a6014643976 |
| https://git.kernel.org/stable/c/4a3fcf53725b70010d1cf869a2ba549fed6b8fb3 |
| https://git.kernel.org/stable/c/daf341e0a2318b813427d5a78788c86f4a7f02be |
| https://git.kernel.org/stable/c/61d31ac85b4572d11f8071855c0ccb4f32d76c0c |
| https://git.kernel.org/stable/c/599a5654215092ac22bfc453f4fd3959c55ea821 |
| https://git.kernel.org/stable/c/0e44d6cbe8de983470c3d2f978649783384fdcb6 |
| https://git.kernel.org/stable/c/f6a99ef4e056c20a138a95cc51332b2b96c8f383 |
| https://git.kernel.org/stable/c/efb9f4f19f8e37fde43dfecebc80292d179f56c6 |
