| 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-2024-26835: netfilter: nf_tables: set dormant flag on hook register failure |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| netfilter: nf_tables: set dormant flag on hook register failure |
| |
| We need to set the dormant flag again if we fail to register |
| the hooks. |
| |
| During memory pressure hook registration can fail and we end up |
| with a table marked as active but no registered hooks. |
| |
| On table/base chain deletion, nf_tables will attempt to unregister |
| the hook again which yields a warn splat from the nftables core. |
| |
| The Linux kernel CVE team has assigned CVE-2024-26835 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.4.262 with commit e10f661adc556c4969c70ddaddf238bffdaf1e87 and fixed in 5.4.270 with commit ae4360cbd385f0d7a8a86d5723e50448cc6318f3 |
| Issue introduced in 5.10.202 with commit d9c4da8cb74e8ee6e58a064a3573aa37acf6c935 and fixed in 5.10.211 with commit 31ea574aeca1aa488e18716459bde057217637af |
| Issue introduced in 5.13 with commit 179d9ba5559a756f4322583388b3213fe4e391b0 and fixed in 5.15.150 with commit 664264a5c55bf97a9c571c557d477b75416199be |
| Issue introduced in 5.13 with commit 179d9ba5559a756f4322583388b3213fe4e391b0 and fixed in 6.1.80 with commit 0c9302a6da262e6ab6a6c1d30f04a6130ed97376 |
| Issue introduced in 5.13 with commit 179d9ba5559a756f4322583388b3213fe4e391b0 and fixed in 6.6.19 with commit f2135bbf14949687e96cabb13d8a91ae3deb9069 |
| Issue introduced in 5.13 with commit 179d9ba5559a756f4322583388b3213fe4e391b0 and fixed in 6.7.7 with commit 6f2496366426cec18ba53f1c7f6c3ac307ca6a95 |
| Issue introduced in 5.13 with commit 179d9ba5559a756f4322583388b3213fe4e391b0 and fixed in 6.8 with commit bccebf64701735533c8db37773eeacc6566cc8ec |
| |
| 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-2024-26835 |
| 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/netfilter/nf_tables_api.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/a6411f3c48f991c19aaf9a24fce36865fbba28d7 |
| https://git.kernel.org/stable/c/ae4360cbd385f0d7a8a86d5723e50448cc6318f3 |
| https://git.kernel.org/stable/c/31ea574aeca1aa488e18716459bde057217637af |
| https://git.kernel.org/stable/c/664264a5c55bf97a9c571c557d477b75416199be |
| https://git.kernel.org/stable/c/0c9302a6da262e6ab6a6c1d30f04a6130ed97376 |
| https://git.kernel.org/stable/c/f2135bbf14949687e96cabb13d8a91ae3deb9069 |
| https://git.kernel.org/stable/c/6f2496366426cec18ba53f1c7f6c3ac307ca6a95 |
| https://git.kernel.org/stable/c/bccebf64701735533c8db37773eeacc6566cc8ec |
