Search/CVE-2025-39841
● CVE — Critical

CVE-2025-39841

Vendordebian, linuxProductdebian linux, linux kernelDiscoveredSep 19, 2025UpdatedJul 30, 2026

In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix buffer free/clear order in deferred receive path Fix a use-after-free window by correcting the buffer release sequence in the deferred receive path. The code freed the RQ buffer first and only then cleared the context pointer under the lock. Concurrent paths (e.g., ABTS and the repost path) also inspect and release the same pointer under the lock, so the old order could lead to double-free/UAF. Note that the repost path already uses the correct pattern: detach the pointer under the lock, then free it after dropping the lock. The deferred path should do the same.

CVSS v3.1
9.8 CRITICAL
EPSS
0.48%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
18
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Oct 22, 2026
▲ 0.04pp
0.44% → 0.48% over 3 tracked changes
CVSS v3.1 Detail
Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Connections
21 relationships
Timeline
disclosure → media coverage
Sep 19, 2025
Disclosure — published as a CVE record. · last revised by NVD Jul 30, 2026
Dec 4, 2025
ubuntu.com reports: USN-7909-1: Linux kernel vulnerabilities
Dec 4, 2025
ubuntu.com reports: USN-7909-2: Linux kernel (Real-time) vulnerabilities
Dec 4, 2025
ubuntu.com reports: USN-7909-3: Linux kernel (FIPS) vulnerabilities
Dec 4, 2025
ubuntu.com reports: USN-7910-1: Linux kernel (Azure FIPS) vulnerabilities
Dec 5, 2025
ubuntu.com reports: USN-7909-4: Linux kernel vulnerabilities
Dec 5, 2025
ubuntu.com reports: USN-7910-2: Linux kernel (Azure) vulnerabilities
Dec 15, 2025
ubuntu.com reports: USN-7933-1: Linux kernel (KVM) vulnerabilities
Dec 15, 2025
ubuntu.com reports: USN-7909-5: Linux kernel (Raspberry Pi) vulnerabilities
Dec 16, 2025
ubuntu.com reports: USN-7938-1: Linux kernel (Azure) vulnerabilities
Mar 16, 2026
ubuntu.com reports: USN-8095-1: Linux kernel vulnerabilities
Mar 16, 2026
ubuntu.com reports: USN-8095-2: Linux kernel (FIPS) vulnerabilities
Mar 17, 2026
ubuntu.com reports: USN-8095-3: Linux kernel (Real-time) vulnerabilities
Mar 23, 2026
ubuntu.com reports: USN-8095-4: Linux kernel (AWS) vulnerabilities
Mar 25, 2026
ubuntu.com reports: USN-8125-1: Linux kernel (Azure) vulnerabilities
Mar 25, 2026
ubuntu.com reports: USN-8126-1: Linux kernel (Azure) vulnerabilities
Apr 1, 2026
ubuntu.com reports: USN-8095-5: Linux kernel (Raspberry Pi) vulnerabilities
Apr 9, 2026
ubuntu.com reports: USN-8165-1: Linux kernel (Azure FIPS) vulnerabilities
May 7, 2026
ubuntu.com reports: USN-8261-1: Linux kernel (Xilinx) vulnerabilities