| 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-2024-46677: gtp: fix a potential NULL pointer dereference |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| gtp: fix a potential NULL pointer dereference |
| |
| When sockfd_lookup() fails, gtp_encap_enable_socket() returns a |
| NULL pointer, but its callers only check for error pointers thus miss |
| the NULL pointer case. |
| |
| Fix it by returning an error pointer with the error code carried from |
| sockfd_lookup(). |
| |
| (I found this bug during code inspection.) |
| |
| The Linux kernel CVE team has assigned CVE-2024-46677 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.12 with commit 1e3a3abd8b28cfda9d0d0167e50e0fe11bc372a9 and fixed in 4.19.321 with commit 620fe9809752fae91b4190e897b81ed9976dfb39 |
| Issue introduced in 4.12 with commit 1e3a3abd8b28cfda9d0d0167e50e0fe11bc372a9 and fixed in 5.4.283 with commit bdd99e5f0ad5fa727b16f2101fe880aa2bff2f8e |
| Issue introduced in 4.12 with commit 1e3a3abd8b28cfda9d0d0167e50e0fe11bc372a9 and fixed in 5.10.225 with commit 8bbb9e4e0e66a39282e582d0440724055404b38c |
| Issue introduced in 4.12 with commit 1e3a3abd8b28cfda9d0d0167e50e0fe11bc372a9 and fixed in 5.15.166 with commit 4643b91691e969b1b9ad54bf552d7a990cfa3b87 |
| Issue introduced in 4.12 with commit 1e3a3abd8b28cfda9d0d0167e50e0fe11bc372a9 and fixed in 6.1.108 with commit e8b9930b0eb045d19e883c65ff9676fc89320c70 |
| Issue introduced in 4.12 with commit 1e3a3abd8b28cfda9d0d0167e50e0fe11bc372a9 and fixed in 6.6.49 with commit 28c67f0f84f889fe9f4cbda8354132b20dc9212d |
| Issue introduced in 4.12 with commit 1e3a3abd8b28cfda9d0d0167e50e0fe11bc372a9 and fixed in 6.10.8 with commit 612edd35f2a3910ab1f61c1f2338889d4ba99fa2 |
| Issue introduced in 4.12 with commit 1e3a3abd8b28cfda9d0d0167e50e0fe11bc372a9 and fixed in 6.11 with commit defd8b3c37b0f9cb3e0f60f47d3d78d459d57fda |
| |
| 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-2024-46677 |
| 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/net/gtp.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/620fe9809752fae91b4190e897b81ed9976dfb39 |
| https://git.kernel.org/stable/c/bdd99e5f0ad5fa727b16f2101fe880aa2bff2f8e |
| https://git.kernel.org/stable/c/8bbb9e4e0e66a39282e582d0440724055404b38c |
| https://git.kernel.org/stable/c/4643b91691e969b1b9ad54bf552d7a990cfa3b87 |
| https://git.kernel.org/stable/c/e8b9930b0eb045d19e883c65ff9676fc89320c70 |
| https://git.kernel.org/stable/c/28c67f0f84f889fe9f4cbda8354132b20dc9212d |
| https://git.kernel.org/stable/c/612edd35f2a3910ab1f61c1f2338889d4ba99fa2 |
| https://git.kernel.org/stable/c/defd8b3c37b0f9cb3e0f60f47d3d78d459d57fda |
