Search/CVE-2022-49026
● CVE — High

CVE-2022-49026

VendorlinuxProductlinux kernelDiscoveredOct 21, 2024UpdatedAug 4, 2026

In the Linux kernel, the following vulnerability has been resolved: e100: Fix possible use after free in e100_xmit_prepare In e100_xmit_prepare(), if we can't map the skb, then return -ENOMEM, so e100_xmit_frame() will return NETDEV_TX_BUSY and the upper layer will resend the skb. But the skb is already freed, which will cause UAF bug when the upper layer resends the skb. Remove the harmful free.

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CVSS v3.1
7.8 HIGH
EPSS
0.24%
probability of exploitation in 30 days
CISA KEV
Not listed
no confirmed exploitation reported
News coverage
14
sources referencing this CVE
Related IOCs
0
seen in the same coverage
EPSS Trend
Aug 16, 2026 → Oct 3, 2026
● 0.00pp
0.24% → 0.24% over 2 tracked changes
CVSS v3.1 Detail
Attack VectorLOCAL
Attack ComplexityLOW
Privileges RequiredLOW
User InteractionNONE
ScopeUNCHANGED
ConfidentialityHIGH
IntegrityHIGH
AvailabilityHIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Connections
16 relationships
Timeline
disclosure → media coverage
Oct 21, 2024
Disclosure — published as a CVE record. · last revised by NVD Aug 4, 2026
Dec 3, 2025
ubuntu.com reports: USN-7907-2: Linux kernel (FIPS) vulnerabilities
Dec 4, 2025
ubuntu.com reports: USN-7907-3: Linux kernel vulnerabilities
Dec 4, 2025
ubuntu.com reports: USN-7907-4: Linux kernel (GCP FIPS) vulnerabilities
Dec 10, 2025
ubuntu.com reports: USN-7922-1: Linux kernel vulnerabilities
Dec 11, 2025
ubuntu.com reports: USN-7922-2: Linux kernel (FIPS) vulnerabilities
Dec 12, 2025
ubuntu.com reports: USN-7907-5: Linux kernel kernel vulnerabilities
Dec 15, 2025
ubuntu.com reports: USN-7930-1: Linux kernel vulnerabilities
Dec 15, 2025
ubuntu.com reports: USN-7930-2: Linux kernel (FIPS) vulnerabilities
Dec 16, 2025
ubuntu.com reports: USN-7937-1: Linux kernel (Azure FIPS) vulnerabilities
Dec 16, 2025
ubuntu.com reports: USN-7939-1: Linux kernel (Azure) vulnerabilities
Dec 16, 2025
ubuntu.com reports: USN-7939-2: Linux kernel (Azure FIPS) vulnerabilities
Dec 19, 2025
ubuntu.com reports: USN-7922-3: Linux kernel (Oracle) vulnerabilities
Jan 6, 2026
ubuntu.com reports: USN-7922-4: Linux kernel (Raspberry Pi) vulnerabilities
Jan 12, 2026
ubuntu.com reports: USN-7922-5: Linux kernel (IoT) vulnerabilities