xfrm: clear trailing padding in build_polexpire()

...

SUSE CVE-2026-31664

In the Linux kernel, the following vulnerability has been resolved: xfrm: clear trailing padding in buildpolexpire buildexpire clears the trailing padding bytes of struct xfrmuserexpire after setting the hard field via memsetafter, but the analogous function buildpolexpire does not do this for...

CVE-2026-31671

A flaw was found in the Linux kernel's xfrmuser component. This vulnerability allows a local attacker to disclose sensitive information. The xfrmuserreport structure contains uninitialized padding bytes that are copied to userspace, leading to an information leak...

CVE-2026-31664

A flaw was found in the Linux kernel's xfrm subsystem. This vulnerability arises because the buildpolexpire function does not clear trailing padding bytes within the xfrmuserpolexpire structure. Consequently, these uninitialized padding bytes, which contain kernel heap memory contents, are sent t...

CVE-2026-31663

A flaw was found in the Linux kernel's xfrm IP eXtensible FRamework subsystem. This vulnerability involves a race condition where a network device's reference is released too early during packet processing after asynchronous cryptography. This premature release can lead to the system attempting t...

CVE-2026-31664

In the Linux kernel, the following vulnerability has been resolved: xfrm: clear trailing padding in buildpolexpire buildexpire clears the trailing padding bytes of struct xfrmuserexpire after setting the hard field via memsetafter, but the analogous function buildpolexpire does not do this for...

CVE-2026-31671

In the Linux kernel, the following vulnerability has been resolved: xfrmuser: fix info leak in buildreport struct xfrmuserreport is a u8 proto field followed by a struct xfrmselector which means there is three "empty" bytes of padding, but the padding is never zeroed before copying to userspace...

DEBIAN-CVE-2026-31671

In the Linux kernel, the following vulnerability has been resolved: xfrmuser: fix info leak in buildreport struct xfrmuserreport is a u8 proto field followed by a struct xfrmselector which means there is three "empty" bytes of padding, but the padding is never zeroed before copying to userspace...

DEBIAN-CVE-2026-31663

In the Linux kernel, the following vulnerability has been resolved: xfrm: hold dev ref until after transportfinish NFHOOK After async crypto completes, xfrminputresume calls devput immediately on re-entry before the skb reaches transportfinish. The skb-dev pointer is then used inside NFHOOK and i...

AZL-83720 CVE-2026-31663 affecting package kernel 6.6.150.1-1

In the Linux kernel, the following vulnerability has been resolved: xfrm: hold dev ref until after transportfinish NFHOOK After async crypto completes, xfrminputresume calls devput immediately on re-entry before the skb reaches transportfinish. The skb-dev pointer is then used inside NFHOOK and i...

CVE-2026-31671 xfrm_user: fix info leak in build_report()

In the Linux kernel, the following vulnerability has been resolved: xfrmuser: fix info leak in buildreport struct xfrmuserreport is a u8 proto field followed by a struct xfrmselector which means there is three "empty" bytes of padding, but the padding is never zeroed before copying to userspace...

CVE-2026-31671

In the Linux kernel, the following vulnerability has been resolved: xfrmuser: fix info leak in buildreport struct xfrmuserreport is a u8 proto field followed by a struct xfrmselector which means there is three "empty" bytes of padding, but the padding is never zeroed before copying to userspace...

CVE-2026-31671

The CVE-2026-31671 issue is in the Linux kernel xfrm_user component. A struct xfrm_user_report includes a __u8 proto field followed by a struct xfrm_selector, creating three padding bytes that were never zeroed before copying to userspace. The vulnerability is a information leak caused by these u...

EUVD-2026-25564

In the Linux kernel, the following vulnerability has been resolved: xfrmuser: fix info leak in buildreport struct xfrmuserreport is a u8 proto field followed by a struct xfrmselector which means there is three "empty" bytes of padding, but the padding is never zeroed before copying to userspace...

CVE-2026-31663

The CVE-2026-31663 vulnerability affects the Linux kernel xfrm subsystem, where a race between asynchronous crypto completion and device teardown could lead to using a freed dev reference. The fix changes the reference handling: the dev ref is no longer released on async resume entry and is inste...

CVE-2026-31664

The CVE-2026-31664 issue resides in the Linux kernel xfrm subsystem: build_polexpire() fails to clear trailing padding in struct xfrm_user_polexpire, leaving uninitialized heap bytes that are sent to userspace via netlink multicast (XFRMNLGRP_EXPIRE). The consequence is potential leakage of kerne...

EUVD-2026-25557

In the Linux kernel, the following vulnerability has been resolved: xfrm: clear trailing padding in buildpolexpire buildexpire clears the trailing padding bytes of struct xfrmuserexpire after setting the hard field via memsetafter, but the analogous function buildpolexpire does not do this for...

CVE-2026-31663

In the Linux kernel, the following vulnerability has been resolved: xfrm: hold dev ref until after transportfinish NFHOOK After async crypto completes, xfrminputresume calls devput immediately on re-entry before the skb reaches transportfinish. The skb-dev pointer is then used inside NFHOOK and i...

CVE-2026-31663

In the Linux kernel, the following vulnerability has been resolved: xfrm: hold dev ref until after transportfinish NFHOOK After async crypto completes, xfrminputresume calls devput immediately on re-entry before the skb reaches transportfinish. The skb-dev pointer is then used inside NFHOOK and i...

USN-8180-4 linux-azure-fips vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - Block layer subsystem; - Drivers core; - Bluetooth drivers; - DMA engine subsystem; - GPU...