| 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-2023-52467: mfd: syscon: Fix null pointer dereference in of_syscon_register() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| mfd: syscon: Fix null pointer dereference in of_syscon_register() |
| |
| kasprintf() returns a pointer to dynamically allocated memory |
| which can be NULL upon failure. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52467 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.9 with commit e15d7f2b81d2e7d93115d46fa931b366c1cdebc2 and fixed in 5.10.209 with commit 927626a2073887ee30ba00633260d4d203f8e875 |
| Issue introduced in 5.9 with commit e15d7f2b81d2e7d93115d46fa931b366c1cdebc2 and fixed in 5.15.148 with commit c3e3a2144bf50877551138ffce9f7aa6ddfe385b |
| Issue introduced in 5.9 with commit e15d7f2b81d2e7d93115d46fa931b366c1cdebc2 and fixed in 6.1.75 with commit 527e8c5f3d00299822612c495d5adf1f8f43c001 |
| Issue introduced in 5.9 with commit e15d7f2b81d2e7d93115d46fa931b366c1cdebc2 and fixed in 6.6.14 with commit 3ef1130deee98997275904d9bfc37af75e1e906c |
| Issue introduced in 5.9 with commit e15d7f2b81d2e7d93115d46fa931b366c1cdebc2 and fixed in 6.7.2 with commit 7f2c410ac470959b88e03dadd94b7a0b71df7973 |
| Issue introduced in 5.9 with commit e15d7f2b81d2e7d93115d46fa931b366c1cdebc2 and fixed in 6.8 with commit 41673c66b3d0c09915698fec5c13b24336f18dd1 |
| |
| 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-2023-52467 |
| 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/mfd/syscon.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/927626a2073887ee30ba00633260d4d203f8e875 |
| https://git.kernel.org/stable/c/c3e3a2144bf50877551138ffce9f7aa6ddfe385b |
| https://git.kernel.org/stable/c/527e8c5f3d00299822612c495d5adf1f8f43c001 |
| https://git.kernel.org/stable/c/3ef1130deee98997275904d9bfc37af75e1e906c |
| https://git.kernel.org/stable/c/7f2c410ac470959b88e03dadd94b7a0b71df7973 |
| https://git.kernel.org/stable/c/41673c66b3d0c09915698fec5c13b24336f18dd1 |
