| 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-2024-49944: sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| sctp: set sk_state back to CLOSED if autobind fails in sctp_listen_start |
| |
| In sctp_listen_start() invoked by sctp_inet_listen(), it should set the |
| sk_state back to CLOSED if sctp_autobind() fails due to whatever reason. |
| |
| Otherwise, next time when calling sctp_inet_listen(), if sctp_sk(sk)->reuse |
| is already set via setsockopt(SCTP_REUSE_PORT), sctp_sk(sk)->bind_hash will |
| be dereferenced as sk_state is LISTENING, which causes a crash as bind_hash |
| is NULL. |
| |
| KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] |
| RIP: 0010:sctp_inet_listen+0x7f0/0xa20 net/sctp/socket.c:8617 |
| Call Trace: |
| <TASK> |
| __sys_listen_socket net/socket.c:1883 [inline] |
| __sys_listen+0x1b7/0x230 net/socket.c:1894 |
| __do_sys_listen net/socket.c:1902 [inline] |
| |
| The Linux kernel CVE team has assigned CVE-2024-49944 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 2.6.30 with commit 5e8f3f703ae4e4af65e2695e486b3cd198328863 and fixed in 4.19.323 with commit 89bbead9d897c77d0b566349c8643030ff2abeba |
| Issue introduced in 2.6.30 with commit 5e8f3f703ae4e4af65e2695e486b3cd198328863 and fixed in 5.4.285 with commit 0e4e2e60556c6ed00e8450b720f106a268d23062 |
| Issue introduced in 2.6.30 with commit 5e8f3f703ae4e4af65e2695e486b3cd198328863 and fixed in 5.10.227 with commit dd70c8a89ef99c3d53127fe19e51ef47c3f860fa |
| Issue introduced in 2.6.30 with commit 5e8f3f703ae4e4af65e2695e486b3cd198328863 and fixed in 5.15.168 with commit e7a8442195e8ebd97df467ce4742980ab57edcce |
| Issue introduced in 2.6.30 with commit 5e8f3f703ae4e4af65e2695e486b3cd198328863 and fixed in 6.1.113 with commit 9230a59eda0878d7ecaa901d876aec76f57bd455 |
| Issue introduced in 2.6.30 with commit 5e8f3f703ae4e4af65e2695e486b3cd198328863 and fixed in 6.6.55 with commit 7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7 |
| Issue introduced in 2.6.30 with commit 5e8f3f703ae4e4af65e2695e486b3cd198328863 and fixed in 6.10.14 with commit f032e1dac30b3376c7d6026fb01a8c403c47a80d |
| Issue introduced in 2.6.30 with commit 5e8f3f703ae4e4af65e2695e486b3cd198328863 and fixed in 6.11.3 with commit e914bf68dab88815a7ae7b7a3a5e8913c8ff14a5 |
| Issue introduced in 2.6.30 with commit 5e8f3f703ae4e4af65e2695e486b3cd198328863 and fixed in 6.12 with commit 8beee4d8dee76b67c75dc91fd8185d91e845c160 |
| |
| 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-2024-49944 |
| 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/sctp/socket.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/89bbead9d897c77d0b566349c8643030ff2abeba |
| https://git.kernel.org/stable/c/0e4e2e60556c6ed00e8450b720f106a268d23062 |
| https://git.kernel.org/stable/c/dd70c8a89ef99c3d53127fe19e51ef47c3f860fa |
| https://git.kernel.org/stable/c/e7a8442195e8ebd97df467ce4742980ab57edcce |
| https://git.kernel.org/stable/c/9230a59eda0878d7ecaa901d876aec76f57bd455 |
| https://git.kernel.org/stable/c/7f64cb5b4d8c872296eda0fdce3bcf099eec7aa7 |
| https://git.kernel.org/stable/c/f032e1dac30b3376c7d6026fb01a8c403c47a80d |
| https://git.kernel.org/stable/c/e914bf68dab88815a7ae7b7a3a5e8913c8ff14a5 |
| https://git.kernel.org/stable/c/8beee4d8dee76b67c75dc91fd8185d91e845c160 |
