PT-2026-52357

In the Linux kernel, the following vulnerability has been resolved: l2tp: pppol2tp: hold reference to session in pppol2tp ioctl pppol2tp ioctl read sock-sk-sk user data directly without any locks or reference counting. If a controllable sleep was induced during copy from user e.g. via a userfault...

EUVD-2026-38908

In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate bgbits during freefrag scan BUG A crafted filesystem can trigger an out-of-bounds bitmap walk when OCFS2IOCINFO is issued with OCFS2INFOFLNONCOHERENT. BUG: KASAN: use-after-free in instrumentatomicread...

CVE-2026-53040

In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate bgbits during freefrag scan BUG A crafted filesystem can trigger an out-of-bounds bitmap walk when OCFS2IOCINFO is issued with OCFS2INFOFLNONCOHERENT. BUG: KASAN: use-after-free in instrumentatomicread...

CVE-2026-52976

In the Linux kernel, the following vulnerability has been resolved: drm/xe: Fix error cleanup in xeexecqueuecreateioctl Two error handling issues exist in xeexecqueuecreateioctl: 1. When xehwenginegroupaddexecqueue fails, the error path jumps to putexecqueue which skips xeexecqueuekill. If the VM...

CVE-2026-52948

In the Linux kernel, the following vulnerability has been resolved: i2c: dev: prevent integer overflow in I2CTIMEOUT ioctl While fuzzing with Syzkaller, a persistent scheduletimeout: wrong timeout value warning was observed, accompanied by SMBus controller state machine corruption. The I2CTIMEOUT...

CVE-2026-53040

In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate bgbits during freefrag scan BUG A crafted filesystem can trigger an out-of-bounds bitmap walk when OCFS2IOCINFO is issued with OCFS2INFOFLNONCOHERENT. BUG: KASAN: use-after-free in instrumentatomicread...

CVE-2026-52948 i2c: dev: prevent integer overflow in I2C_TIMEOUT ioctl

In the Linux kernel, the following vulnerability has been resolved: i2c: dev: prevent integer overflow in I2CTIMEOUT ioctl While fuzzing with Syzkaller, a persistent scheduletimeout: wrong timeout value warning was observed, accompanied by SMBus controller state machine corruption. The I2CTIMEOUT...

CVE-2026-52948

CVE-2026-52948 affects the Linux kernel I2C subsystem (i2c: dev) where the I2C_TIMEOUT ioctl accepts a user timeout in 10 ms steps. The argument is checked against INT_MAX but is then multiplied by 10 before passing to msecs_to_jiffies(). A malicious user can pass a value (e.g., 429496729) that p...

CVE-2026-52948

In the Linux kernel, the following vulnerability has been resolved: i2c: dev: prevent integer overflow in I2CTIMEOUT ioctl While fuzzing with Syzkaller, a persistent scheduletimeout: wrong timeout value warning was observed, accompanied by SMBus controller state machine corruption. The I2CTIMEOUT...

CVE-2026-52937

In the Linux kernel, the following vulnerability has been resolved: tap: fix stack info leak in tapioctl SIOCGIFHWADDR In the SIOCGIFHWADDR path, tapioctl copies 16 bytes of an uninitialised on-stack struct sockaddrstorage to userspace via ifrhwaddr, but netifgetmacaddress only writes safamily an...

CVE-2026-52937

In the Linux kernel, the following vulnerability has been resolved: tap: fix stack info leak in tapioctl SIOCGIFHWADDR In the SIOCGIFHWADDR path, tapioctl copies 16 bytes of an uninitialised on-stack struct sockaddrstorage to userspace via ifrhwaddr, but netifgetmacaddress only writes safamily an...

CVE-2026-52937 tap: fix stack info leak in tap_ioctl() SIOCGIFHWADDR

In the Linux kernel, the following vulnerability has been resolved: tap: fix stack info leak in tapioctl SIOCGIFHWADDR In the SIOCGIFHWADDR path, tapioctl copies 16 bytes of an uninitialised on-stack struct sockaddrstorage to userspace via ifrhwaddr, but netifgetmacaddress only writes safamily an...

CVE-2026-52937

CVE-2026-52937 concerns the Linux kernel where the tap_ioctl() path handling SIOCGIFHWADDR leaks kernel stack contents by copying 16 bytes of an uninitialised sockaddr_storage to userspace. Specifically, netif_get_mac_address() writes only sa_family and dev->addr_len (6 bytes), leaving sa_data...

CVE-2026-52937 tap: fix stack info leak in tap_ioctl() SIOCGIFHWADDR

In the Linux kernel, the following vulnerability has been resolved: tap: fix stack info leak in tapioctl SIOCGIFHWADDR In the SIOCGIFHWADDR path, tapioctl copies 16 bytes of an uninitialised on-stack struct sockaddrstorage to userspace via ifrhwaddr, but netifgetmacaddress only writes safamily an...

EUVD-2026-38707

In the Linux kernel, the following vulnerability has been resolved: tap: fix stack info leak in tapioctl SIOCGIFHWADDR In the SIOCGIFHWADDR path, tapioctl copies 16 bytes of an uninitialised on-stack struct sockaddrstorage to userspace via ifrhwaddr, but netifgetmacaddress only writes safamily an...

PT-2026-51870

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description Two error handling issues exist within the drm/xe graphics driver in the xe exec queue create ioctl function. The first issue occurs when xe hw engine group add exec queue fails; the err...

PT-2026-51730

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description A stack information leak exists in the tap ioctl function during the SIOCGIFHWADDR path. The function copies 16 bytes of an uninitialized on-stack sockaddr storage structure to userspace...

Linux Distros Unpatched Vulnerability : CVE-2026-52937

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tap: fix stack info leak in tapioctl SIOCGIFHWADDR In the SIOCGIFHWADDR path, tapioctl copies 16 bytes of an uninitialised on-stack struct sockaddrstorage to...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: drm/msm/gem: fixed error handling in msmioctlgeminfogetmetadata The msmioctlgeminfogetmetadata function always returns 0, regardless of errors. When copytouser fails or the user buffer is too small, the error code stored in re...

Siemens RUGGEDCOM RST2428P Improper Input Validation (CVE-2026-23236)

In the Linux kernel, the following vulnerability has been resolved: fbdev: smscufx: properly copy ioctl memory to kernelspace The UFXIOCTLREPORTDAMAGE ioctl does not properly copy data from userspace to kernelspace, and instead directly references the memory, which can cause problems if invalid...