EUVD-2026-39214

In the Linux kernel, the following vulnerability has been resolved: 6lowpan: fix off-by-one in multicast context address compression The second memcpy in lowpaniphcmcastctxaddrcompress uses &data1 as destination and &ipaddr-s6addr11 as source, but both should be offset by one: &data2 and...

CVE-2026-53211 netfilter: nft_meta_bridge: fix stale stack leak via IIFHWADDR register

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftmetabridge: fix stale stack leak via IIFHWADDR register NFTMETABRIIIFHWADDR declares its destination register with len = ETHALEN 6 bytes, which the register-init tracking rounds up to two 32-bit registers 8 bytes...

CVE-2026-53211 netfilter: nft_meta_bridge: fix stale stack leak via IIFHWADDR register

In the Linux kernel, the following vulnerability has been resolved: netfilter: nftmetabridge: fix stale stack leak via IIFHWADDR register NFTMETABRIIIFHWADDR declares its destination register with len = ETHALEN 6 bytes, which the register-init tracking rounds up to two 32-bit registers 8 bytes...

PT-2026-52306

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft meta bridge: fix stale stack leak via IIFHWADDR register NFT META BRI IIFHWADDR declares its destination register with len = ETH ALEN 6 bytes, which the register-init tracking rounds up to two 32-bit registers 8...

CVE-2026-52940

In the Linux kernel, the following vulnerability has been resolved: tun: zero the whole vnet header in tunputuser tunputuser declares an on-stack struct virtionethdrv1hashtunnel without zeroing it. For a non-tunnel skb, virtionethdrtnlfromskb only initializes the first 10 bytes sizeofstruct...

CVE-2026-52940 tun: zero the whole vnet header in tun_put_user()

In the Linux kernel, the following vulnerability has been resolved: tun: zero the whole vnet header in tunputuser tunputuser declares an on-stack struct virtionethdrv1hashtunnel without zeroing it. For a non-tunnel skb, virtionethdrtnlfromskb only initializes the first 10 bytes sizeofstruct...

PT-2026-51733

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists where the tun put user function declares a virtio net hdr v1 hash tunnel structure on the stack without initializing it to zero. For non-tunnel socket buffers skb, the...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: platform/chrome: crosectypec: Stale pointers have been set to zero. The function crostypecgetswitchhandles allocates four pointers when obtaining type-c switch handles. These pointers are all freed if none of them are obtained...

CVE-2026-48984

pamusb provides hardware authentication for Linux using ordinary removable media. In versions 0.9.1 and below, the xfree memory release helper in calls free without first zeroing the buffer contents, releasing heap-allocated buffers containing sensitive data — including one-time pad bytes read fr...

CVE-2026-48984 pam_usb: xfree() does not call explicit_bzero — sensitive cryptographic material may linger in freed heap

pamusb provides hardware authentication for Linux using ordinary removable media. In versions 0.9.1 and below, the xfree memory release helper in calls free without first zeroing the buffer contents, releasing heap-allocated buffers containing sensitive data — including one-time pad bytes read fr...

CVE-2026-48984

pam_usb for Linux (affected: v0.9.1 and earlier) has a memory handling flaw where xfree() frees buffers without zeroing contents, potentially leaving sensitive data (including one-time pad bytes) in freed heap memory. On systems with use-after-free or heap inspection capabilities, this could perm...

CVE-2026-48984

pamusb provides hardware authentication for Linux using ordinary removable media. In versions 0.9.1 and below, the xfree memory release helper in calls free without first zeroing the buffer contents, releasing heap-allocated buffers containing sensitive data — including one-time pad bytes read fr...

CVE-2026-48984 pam_usb: xfree() does not call explicit_bzero — sensitive cryptographic material may linger in freed heap

pamusb provides hardware authentication for Linux using ordinary removable media. In versions 0.9.1 and below, the xfree memory release helper in calls free without first zeroing the buffer contents, releasing heap-allocated buffers containing sensitive data — including one-time pad bytes read fr...

PT-2026-50769

Name of the Vulnerable Software and Affected Versions pam usb versions 0.9.1 and earlier Description The xfree memory release helper calls free without zeroing buffer contents first. This results in heap-allocated buffers containing sensitive data, such as one-time pad bytes read from disk, being...

CVE-2026-46329 erofs: handle end of filesystem properly for file-backed mounts

In the Linux kernel, the following vulnerability has been resolved: erofs: handle end of filesystem properly for file-backed mounts I/O requests beyond the end of the filesystem should be zeroed out, similar to loopback devices and that is what we expect...

CVE-2026-46326

CVE-2026-46326 affects the Linux kernel driver iio: pressure: mprls0025pa. The root cause is improper initialization of the spi_transfer structure, with the patch ensuring the spi_transfer struct is zeroed out before use. The impact is high (local access with potential to read uninitialized memor...

CVE-2026-46167

In the Linux kernel, the following vulnerability has been resolved: usb: usblp: fix uninitialized heap leak via LPGETSTATUS ioctl Just like in a previous problem in this driver, usblpctrlmsg will collapse the usbcontrolmsg return value to 0/-errno, discarding the actual number of bytes transferre...

CVE-2026-46132

In the Linux kernel, the following vulnerability has been resolved: net: rtnetlink: zero iflavfbroadcast to avoid stack infoleak in rtnlfillvfinfo rtnlfillvfinfo declares struct iflavfbroadcast on the stack without initialisation: struct iflavfbroadcast vfbroadcast; The struct contains a single...

CVE-2026-46182

In the Linux kernel, the following vulnerability has been resolved: pseries/papr-hvpipe: Prevent kernel stack memory leak to userspace The hdr variable is allocated on the stack and only hdr.version and hdr.flags are initialized explicitly. Because the struct paprhvpipehdr contains reserved paddi...

UBUNTU-CVE-2026-46182

In the Linux kernel, the following vulnerability has been resolved: pseries/papr-hvpipe: Prevent kernel stack memory leak to userspace The hdr variable is allocated on the stack and only hdr.version and hdr.flags are initialized explicitly. Because the struct paprhvpipehdr contains reserved paddi...