CVE-2026-98498: Linux kernel · net/mlx5: Fix rev_entry reference leak in mlx5_tc_ct_shared_counter_get()
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in c45c997d0c27359b502587897f775c5a277f0bd4 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:05 UTC
Rated Low by Threat Radar's AI analysis · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in c45c997d0c27359b502587897f775c5a277f0bd4, 288721013605b4e0304e10f6a087b77f71cfad11, 598daa5f95883f881a54967da40ce0fdfc1fdaa8 +5
Exploitation evidence
Disclosed: evidence found.
CVE published 18 Oct 2026
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.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A fix is available and has been applied in the Linux kernel. Users should update to the fixed kernel versions identified by the commits c45c997d0c27359b502587897f775c5a277f0bd4 and others listed. No additional mitigation steps are indicated.
Description
A reference leak vulnerability in the Linux kernel's mlx5 driver was fixed. The flaw involved a reference count not being properly dropped when a reverse entry's counter was already being released, potentially causing the reverse entry to remain alive indefinitely. This issue was resolved by ensuring the reference is dropped to prevent the leak.
References
- git.kernel.org/stable/c/598daa5f95883f881a54967da40ce0fdfc1fdaa8 (opens in a new tab)
- git.kernel.org/stable/c/79a3257280a335bbebbcd10d3895e8468bdcd6ae (opens in a new tab)
- git.kernel.org/stable/c/c45c997d0c27359b502587897f775c5a277f0bd4 (opens in a new tab)
- git.kernel.org/stable/c/288721013605b4e0304e10f6a087b77f71cfad11 (opens in a new tab)
- git.kernel.org/stable/c/60eab87d0a798070bf5a856b1d9e5785ce92da53 (opens in a new tab)
- git.kernel.org/stable/c/99d8dc51663747078c031acac32edc6d90c8f1f7 (opens in a new tab)
- git.kernel.org/stable/c/1f13989a0704bd98cab09f9bee63e2c8a98ad4dd (opens in a new tab)
- git.kernel.org/stable/c/0bf6bb567f0edaa771e7dd208ef98da50e6a4485 (opens in a new tab)