CVE-2024-50095: Linux kernel · RDMA/mad: Improve handling of timed out WRs of mad agent
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 7.5 High · fixed in 4.4.0-1150.156 : patch Linux kernel soon.
Data as of 26 Oct 2026, 23:29 UTC
- Patch
- Available – fixed in 4.4.0-1150.156, 4.15.0-1195.210~14.04.1, 4.4.0-276.310~14.04.1 +102
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 5 Nov 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Patches and advisories
- ubuntu.com/security/notices/USN-7166-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7166-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7166-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7186-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7186-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7194-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7166-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-7276-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7277-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7310-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7383-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7384-1 (opens in a new tab)
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azure-6.11pkg:deb/ubuntu/linux-azure-6.11?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-azure-nvidiapkg:deb/ubuntu/linux-azure-nvidia?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Ubuntu 24.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=nobleOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available and has been applied in multiple Linux kernel versions as listed in the fixedVersions. Users should update to one of the fixed kernel versions to resolve this issue. No additional mitigation steps are required beyond applying the official fix.
Description
CVE-2024-50095 addresses a vulnerability in the Linux kernel's RDMA/mad agent timeout handler. The original implementation caused heavy locking contention due to acquiring and releasing a lock for every timed out work request (WR), leading to potential soft lockups under high load. The fix simplifies the timeout handler by batching timed out WRs, reducing lock contention and preventing CPU soft lockups. This vulnerability affects various Linux kernel versions prior to the fixed releases.
References
- ubuntu.com/security/CVE-2024-50095 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2024-50095 (opens in a new tab)
- git.kernel.org/linus/2a777679b8ccd09a9a65ea0716ef10365179caac (opens in a new tab)
- git.kernel.org/stable/c/713adaf0ecfc49405f6e5d9e409d984f628de818 (opens in a new tab)
- git.kernel.org/stable/c/7022a517bf1ca37ef5a474365bcc5eafd345a13a (opens in a new tab)
- git.kernel.org/stable/c/e80eadb3604a92d2d086e956b8b2692b699d4d0a (opens in a new tab)
- git.kernel.org/stable/c/a195a42dd25ca4f12489687065d00be64939409f (opens in a new tab)
- git.kernel.org/stable/c/3e799fa463508abe7a738ce5d0f62a8dfd05262a (opens in a new tab)
- git.kernel.org/stable/c/2a777679b8ccd09a9a65ea0716ef10365179caac (opens in a new tab)
- ubuntu.com/security/notices/USN-7166-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7166-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7166-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7186-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7186-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7194-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7166-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-7276-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7277-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7310-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7383-1 (opens in a new tab)