| 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-2024-26652: net: pds_core: Fix possible double free in error handling path |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net: pds_core: Fix possible double free in error handling path |
| |
| When auxiliary_device_add() returns error and then calls |
| auxiliary_device_uninit(), Callback function pdsc_auxbus_dev_release |
| calls kfree(padev) to free memory. We shouldn't call kfree(padev) |
| again in the error handling path. |
| |
| Fix this by cleaning up the redundant kfree() and putting |
| the error handling back to where the errors happened. |
| |
| The Linux kernel CVE team has assigned CVE-2024-26652 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.4 with commit 4569cce43bc61e4cdd76597a1cf9b608846c18cc and fixed in 6.6.22 with commit 995f802abff209514ac2ee03b96224237646cec3 |
| Issue introduced in 6.4 with commit 4569cce43bc61e4cdd76597a1cf9b608846c18cc and fixed in 6.7.10 with commit ffda0e962f270b3ec937660afd15b685263232d3 |
| Issue introduced in 6.4 with commit 4569cce43bc61e4cdd76597a1cf9b608846c18cc and fixed in 6.8 with commit ba18deddd6d502da71fd6b6143c53042271b82bd |
| |
| 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-2024-26652 |
| 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/ethernet/amd/pds_core/auxbus.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/995f802abff209514ac2ee03b96224237646cec3 |
| https://git.kernel.org/stable/c/ffda0e962f270b3ec937660afd15b685263232d3 |
| https://git.kernel.org/stable/c/ba18deddd6d502da71fd6b6143c53042271b82bd |
