*** This bug is a security vulnerability *** You have been subscribed to a public security bug by Marc Deslauriers (mdeslaur):
Currently linux-bluefield is vulnerable to https://ubuntu.com/security/CVE-2025-21857. I encountered instances of this on several hundred BF3 cards that crashed over time with a null pointer dereference causing outages. The latest Bluefield image builds are affected https://github.com/Mellanox/bfb-build/blob/9e80eb358e7bb9e62328039745cc43d69eefc64a/ubuntu/22.04/Dockerfile#L33-L46 (bf-bundle-2.10.0-147_25.01_ubuntu-22.04) The unpatched function in linux-bluefield: https://git.launchpad.net/~canonical-kernel/ubuntu/+source/linux-bluefield/+git/jammy/tree/net/sched/cls_api.c?h=master-next#n99 static int tcf_exts_miss_cookie_base_alloc(struct tcf_exts *exts, struct tcf_proto *tp, u32 handle) { // ... if (err) goto err_xa_alloc; The upstream one-liner: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3c74b5787caf59bb1e9c5fe0a360643a71eb1e8a diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index 8e47e5355be613..4f648af8cfaafe 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -97,7 +97,7 @@ tcf_exts_miss_cookie_base_alloc(struct tcf_exts *exts, struct tcf_proto *tp, err = xa_alloc_cyclic(&tcf_exts_miss_cookies_xa, &n->miss_cookie_base, n, xa_limit_32b, &next, GFP_KERNEL); - if (err) + if (err < 0) goto err_xa_alloc; ** Affects: linux-bluefield (Ubuntu) Importance: Undecided Status: New -- linux-bluefield is vulnerable to CVE-2025-21857 https://bugs.launchpad.net/bugs/2109993 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to the bug report. -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
