Linux Kernel Security Vulnerabilities

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the incorrect use of RCU in the mlx4srqevent function within RDMA mlx4. This vulnerability may le...

EUVD-2026-32261

In the Linux kernel, the following vulnerability has been resolved: fbnic: close fwlog race between users and teardown Fixes a theoretical race on fwlog between the teardown path and fwlog write functions. fwlog is written inside fbnicfwlogwrite and can be reached from the mailbox handler...

EUVD-2026-32260

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix memory leak in amdgpurasinit When amdgpunbiorasswinit fails in amdgpurasinit, the function returns directly without freeing the allocated con structure, leading to a memory leak. Fix this by jumping to the...

EUVD-2026-32245

In the Linux kernel, the following vulnerability has been resolved: gfs2: fix memory leaks in gfs2fillsuper error path Fix two memory leaks in the gfs2fillsuper error handling path when transitioning a filesystem to read-write mode fails. First leak: kthread objects threadstruct, taskstruct, etc...

EUVD-2026-32231

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix memory leak in amdgpuacpienumeratexcc In amdgpuacpienumeratexcc, if amdgpuacpidevinit returns -ENOMEM, the function returns directly without releasing the allocated xccinfo, resulting in a memory leak. Fix this by...

EUVD-2026-32392

In the Linux kernel, the following vulnerability has been resolved: rust: pwm: Fix potential memory leak on init error When initializing a PWM chip using pwmchipalloc, the allocated device owns an initial reference that must be released on all error paths. If pinnedinit were to fail, the allocate...

EUVD-2026-32214

In the Linux kernel, the following vulnerability has been resolved: net: mctp: ensure our nlmsg responses are initialised Syed Faraz Abrar @farazsth98 from Zellic, and Pumpkin @u1f383 from DEVCORE Research Team working with Trend Micro Zero Day Initiative report that a RTMGETNEIGH will return...

EUVD-2026-32355

In the Linux kernel, the following vulnerability has been resolved: mptcp: do not account for OoO in mptcprcvbufgrow MPTCP-level OoOs are physiological when multiple subflows are active concurrently and will not cause retransmissions nor are caused by drops. Accounting for them in mptcprcvbufgrow...

EUVD-2025-209965

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Initialize new folios before use KMSAN reports an uninitialized value in longestmatchstd, invoked from ntfscompresswrite. When new folios are allocated without being marked uptodate and nireadframe is skipped because th...

CVE-2026-46049

In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Add fallback to default RSR for S/PDIF spdifpassthruplaybackgetresources uses atc-pllrate as the RSR for the MSR calculation loop. However, pllrate is only updated in atcpllinit and not in hwpllinit, so it remains 0...

CVE-2026-46028

In the Linux kernel, the following vulnerability has been resolved: crypto: algifaead - snapshot IV for async AEAD requests AFALG AEAD AIO requests currently use the socket-wide IV buffer during request processing. For async requests, later socket activity can update that shared state before the...

CVE-2026-45977

In the Linux kernel, the following vulnerability has been resolved: fbnic: close fwlog race between users and teardown Fixes a theoretical race on fwlog between the teardown path and fwlog write functions. fwlog is written inside fbnicfwlogwrite and can be reached from the mailbox handler...

CVE-2026-45947

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix memory leak in amdgpuacpienumeratexcc In amdgpuacpienumeratexcc, if amdgpuacpidevinit returns -ENOMEM, the function returns directly without releasing the allocated xccinfo, resulting in a memory leak. Fix this by...

CVE-2026-45930

In the Linux kernel, the following vulnerability has been resolved: net: mctp: ensure our nlmsg responses are initialised Syed Faraz Abrar @farazsth98 from Zellic, and Pumpkin @u1f383 from DEVCORE Research Team working with Trend Micro Zero Day Initiative report that a RTMGETNEIGH will return...

CVE-2026-45892

In the Linux kernel, the following vulnerability has been resolved: ext4: drop extent cache after doing PARTIALVALID1 zeroout When splitting an unwritten extent in the middle and converting it to initialized in ext4splitextent with the EXT4EXTMAYZEROOUT and EXT4EXTDATAVALID2 flags set, it could...

UBUNTU-CVE-2026-46049

In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Add fallback to default RSR for S/PDIF spdifpassthruplaybackgetresources uses atc-pllrate as the RSR for the MSR calculation loop. However, pllrate is only updated in atcpllinit and not in hwpllinit, so it remains 0...

UBUNTU-CVE-2026-45977

In the Linux kernel, the following vulnerability has been resolved: fbnic: close fwlog race between users and teardown Fixes a theoretical race on fwlog between the teardown path and fwlog write functions. fwlog is written inside fbnicfwlogwrite and can be reached from the mailbox handler...

UBUNTU-CVE-2026-45976

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix memory leak in amdgpurasinit When amdgpunbiorasswinit fails in amdgpurasinit, the function returns directly without freeing the allocated con structure, leading to a memory leak. Fix this by jumping to the...

UBUNTU-CVE-2026-45939

In the Linux kernel, the following vulnerability has been resolved: gpib: Fix memory leak in niusbinit In niusbinit, if niusbsetupinit fails, the function returns -EFAULT without freeing the allocated writes buffer, leading to a memory leak. Additionally, niusbsetupinit returns 0 on failure, whic...

CVE-2025-71311

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Initialize new folios before use KMSAN reports an uninitialized value in longestmatchstd, invoked from ntfscompresswrite. When new folios are allocated without being marked uptodate and nireadframe is skipped because th...