PT-2026-34976

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the HID core where the s32ton function performs a shift operation by n-1, with n being the report size provided directly by a HID device. Because the HID parser only...

Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2026-006930)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-006930 advisory. In the Linux kernel, the following vulnerability has been resolved: lib/fonts: fix undefined behavior in bit shift for getdefaultfont Shifting signed 32-bit value by...

kernel: Linux kernel: integer overflow and information disclosure via undefined shift operation in drm/amdkfd

A flaw was found in the Linux kernel’s AMD Kernel Fusion Driver amdkfd within the drm subsystem. When either getnumsdmaqueues or getnumxgmisdmaqueues returned 0, the driver performed a bit shift where the number of bits shifted equaled the operand width. Such a shift is undefined behavior in C an...

kernel: Linux kernel: integer overflow and information disclosure via undefined shift operation in drm/amdkfd

A flaw was found in the Linux kernel’s AMD Kernel Fusion Driver amdkfd within the drm subsystem. When either getnumsdmaqueues or getnumxgmisdmaqueues returned 0, the driver performed a bit shift where the number of bits shifted equaled the operand width. Such a shift is undefined behavior in C an...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992302)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992302 advisory. In the Linux kernel, the following vulnerability has been resolved: net: mdio: fix undefined behavior in bit shift for mdiobusregister Shifting signed 32-bit value b...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: gfs2: Validating idepth for exhash directories A fuzzer test introduced corruption where the depth of the directory reached 0 in direread. This caused an undefined shift of 32 in the following line: index = hash 32 - dip-idepth; ...

CVE-2023-53726

In the Linux kernel, the following vulnerability has been resolved: arm64: csum: Fix OoB access in IP checksum code for negative lengths Although commit c2c24edb1d9c "arm64: csum: Fix pathological zero-length calls" added an early return for zero-length input, syzkaller has popped up with an...

CVE-2023-53726

CVE-2023-53726 – Linux kernel (arm64): The issue is an out-of-bounds read in the arm64 IP checksum path (arch/arm64/lib/csum.c) caused by negative input lengths. The fix extends the existing early return to reject negative lengths, aligning with the generic code in lib/checksum.c. The vulnerabili...

OESA-2025-2312 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: gfs2: Validate idepth for exhash directories A fuzzer test introduced corruption that ends up with a depth of 0 in direread, causing an undefined shift by 32 at:...

CVE-2022-50403

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority...

CVE-2022-50390

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: fix undefined behavior in bit shift for TTMTTFLAGPRIVPOPULATED Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN:...

CVE-2022-50390

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: fix undefined behavior in bit shift for TTMTTFLAGPRIVPOPULATED Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN:...

CVE-2025-39788 scsi: ufs: exynos: Fix programming of HCI_UTRL_NEXUS_TYPE

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: exynos: Fix programming of HCIUTRLNEXUSTYPE On Google gs101, the number of UTP transfer request slots nutrs is 32, and in this case the driver ends up programming the UTRLNEXUSTYPE incorrectly as 0. This is because the...

SUSE CVE-2025-38710

In the Linux kernel, the following vulnerability has been resolved: gfs2: Validate idepth for exhash directories A fuzzer test introduced corruption that ends up with a depth of 0 in direread, causing an undefined shift by 32 at: index = hash 32 - dip-idepth; As calculated in an open-coded way in...

DEBIAN-CVE-2025-38710

In the Linux kernel, the following vulnerability has been resolved: gfs2: Validate idepth for exhash directories A fuzzer test introduced corruption that ends up with a depth of 0 in direread, causing an undefined shift by 32 at: index = hash 32 - dip-idepth; As calculated in an open-coded way in...

CVE-2025-38710

The CVE-2025-38710 vulnerability affects the Linux kernel GFS2: it relies on i_depth validation for exhash directories. A fuzzer introduced corruption that could yield a dir_e_read() depth of 0, causing an undefined shift by 32 at index = hash >> (32 - dip->i_depth). The minimum depth is...

CVE-2025-38710 gfs2: Validate i_depth for exhash directories

In the Linux kernel, the following vulnerability has been resolved: gfs2: Validate idepth for exhash directories A fuzzer test introduced corruption that ends up with a depth of 0 in direread, causing an undefined shift by 32 at: index = hash 32 - dip-idepth; As calculated in an open-coded way in...

PT-2025-35983

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the Linux kernel related to the validation of i depth for exhash directories within the gfs2 filesystem. A fuzzer test revealed corruption leading to a depth of 0 in dir...

UBUNTU-CVE-2022-49870

In the Linux kernel, the following vulnerability has been resolved: capabilities: fix undefined behavior in bit shift for CAPTOMASK Shifting signed 32-bit value by 31 bits is undefined, so changing significant bit to unsigned. The UBSAN warning calltrace like below: UBSAN: shift-out-of-bounds in...

UBUNTU-CVE-2025-21789

In the Linux kernel, the following vulnerability has been resolved: LoongArch: csum: Fix OoB access in IP checksum code for negative lengths Commit 69e3a6aa6be2 "LoongArch: Add checksum optimization for 64-bit system" would cause an undefined shift and an out-of-bounds read. Commit 8bd795fedb84...