Critical severity · published Aug 15, 2026
CVE-2026-74279
crypto: cavium/cpt - fix DMA cleanup using wrong loop index
10.0
CVSS
0.8%
EPSS
No
On KEV
Description
In the Linux kernel, the following vulnerability has been resolved:
crypto: cavium/cpt - fix DMA cleanup using wrong loop index
The sg_cleanup error path used list[i] instead of list[j] when unmapping
DMA buffers, leaking successfully mapped entries and repeatedly unmapping
the failed one.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
c694b233295b99c33dd5ac28aede9f171f5a6862 before 23c6174e48f66fc10b998b0acdb406cb0caf5c80; c694b233295b99c33dd5ac28aede9f171f5a6862 before 23d3a7e896a1fe2d7a6bcb42f093948b79f8a198; c694b233295b99c33dd5ac28aede9f171f5a6862 before 28141f95ae93b18f9bfde953cb787fcb151fb9da; c694b233295b99c33dd5ac28aede9f171f5a6862 before 8afd1007ef79898a6e010eaade97097e49405fce; c694b233295b99c33dd5ac28aede9f171f5a6862 before 3b8a1e1f4e4071a62b20374028744e8cc8310d48; c694b233295b99c33dd5ac28aede9f171f5a6862 before fb4d57b83356d4bd411b45ede3024e0ff42c9b5e; +3 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74279
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-74279
git.kernel.org
https://git.kernel.org/stable/c/23c6174e48f66fc10b998b0acdb406cb0caf5c80
git.kernel.org
https://git.kernel.org/stable/c/23d3a7e896a1fe2d7a6bcb42f093948b79f8a198
git.kernel.org
https://git.kernel.org/stable/c/28141f95ae93b18f9bfde953cb787fcb151fb9da
git.kernel.org
https://git.kernel.org/stable/c/3b8a1e1f4e4071a62b20374028744e8cc8310d48
git.kernel.org
https://git.kernel.org/stable/c/8afd1007ef79898a6e010eaade97097e49405fce
git.kernel.org
https://git.kernel.org/stable/c/9dbf173bd32d5f81b005008b682bfb50aa093455
More from Linux
9.8
CVE-2025-39682
tls: fix handling of zero-length records on the rx_list
8.8
CVE-2026-53266
netfilter: bridge: make ebt_snat ARP rewrite writable
7.8
CVE-2026-53362
ipv6: account for fraggap on the paged allocation path
7.8
CVE-2026-31431
crypto: algif_aead - Revert to operating out-of-place
7.8
CVE-2025-38352
posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()