| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Wed, 3 Apr 2024 16:56:14 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2024-26723: lan966x: Fix crash when adding interface under a lag Description =========== In the Linux kernel, the following vulnerability has been resolved: lan966x: Fix crash when adding interface under a lag There is a crash when adding one of the lan966x interfaces under a lag interface. The issue can be reproduced like this: ip link add name bond0 type bond miimon 100 mode balance-xor ip link set dev eth0 master bond0 The reason is because when adding a interface under the lag it would go through all the ports and try to figure out which other ports are under that lag interface. And the issue is that lan966x can have ports that are NULL pointer as they are not probed. So then iterating over these ports it would just crash as they are NULL pointers. The fix consists in actually checking for NULL pointers before accessing something from the ports. Like we do in other places. The Linux kernel CVE team has assigned CVE-2024-26723 to this issue. Affected and fixed versions =========================== Issue introduced in 6.1 with commit cabc9d49333d and fixed in 6.1.79 with commit b9357489c46c Issue introduced in 6.1 with commit cabc9d49333d and fixed in 6.6.18 with commit 48fae67d8374 Issue introduced in 6.1 with commit cabc9d49333d and fixed in 6.7.6 with commit 2a492f01228b Issue introduced in 6.1 with commit cabc9d49333d and fixed in 6.8 with commit 15faa1f67ab4 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-2024-26723 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/microchip/lan966x/lan966x_lag.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/b9357489c46c7a43999964628db8b47d3a1f8672 https://git.kernel.org/stable/c/48fae67d837488c87379f0c9f27df7391718477c https://git.kernel.org/stable/c/2a492f01228b7d091dfe38974ef40dccf8f9f2f1 https://git.kernel.org/stable/c/15faa1f67ab405d47789d4702f587ec7df7ef03e
Powered by blists - more mailing lists