Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15, Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: Slip: Make slhcremember more robust against malicious packets. syzbot found that slhcremember lacked checks against malicious packets 1. slhcremember only checks that the packet’s size is at least 20 bytes, which is...

CVE-2026-68143

In the Linux kernel, the following vulnerability has been resolved: net: slip: serialize receive against buffer reallocation slreallocbufs replaces rbuff and updates buffsize while holding sl-lock. slipreceivebuf reads those fields and writes through rbuff without holding the lock. An MTU change...

EUVD-2026-55526

In the Linux kernel, the following vulnerability has been resolved: net: slip: serialize receive against buffer reallocation slreallocbufs replaces rbuff and updates buffsize while holding sl-lock. slipreceivebuf reads those fields and writes through rbuff without holding the lock. An MTU change...

Important: kernel6.18

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: bpf: fix end-of-list detection in cgroupstoragegetnextkey CVE-2026-45838 In the Linux kernel, the following vulnerability has been resolved: bpf: reject negative CO-RE accessor indices in bpfcoreparsespec...

slip: reject VJ receive packets on instances with no rstate array

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SUSE CVE-2026-45842

In the Linux kernel, the following vulnerability has been resolved: slip: reject VJ receive packets on instances with no rstate array slhcinit accepts rslots == 0 as a valid configuration, with the documented meaning of 'no receive compression'. In that case the allocation loop in slhcinit is...

CVE-2026-45842

In the Linux kernel, the following vulnerability has been resolved: slip: reject VJ receive packets on instances with no rstate array slhcinit accepts rslots == 0 as a valid configuration, with the documented meaning of 'no receive compression'. In that case the allocation loop in slhcinit is...

UBUNTU-CVE-2026-45842

In the Linux kernel, the following vulnerability has been resolved: slip: reject VJ receive packets on instances with no rstate array slhcinit accepts rslots == 0 as a valid configuration, with the documented meaning of 'no receive compression'. In that case the allocation loop in slhcinit is...

CVE-2026-45843

CVE-2026-45843 affects the Linux kernel’s SLIP/VJ-compressed TCP header handling (slip and slhc_uncompress). The vulnerability stems from decode() and pull16() not enforcing bounds against the packet end, and decode() masking its return value to 0xFFFF, causing potential over-reads when a compres...

CVE-2026-45843 slip: bound decode() reads against the compressed packet length

In the Linux kernel, the following vulnerability has been resolved: slip: bound decode reads against the compressed packet length slhcuncompress parses a VJ-compressed TCP header by advancing a pointer through the packet via decode and pull16. Neither helper bounds-checks against isize, and decod...

CVE-2026-45843

In the Linux kernel, the following vulnerability has been resolved: slip: bound decode reads against the compressed packet length slhcuncompress parses a VJ-compressed TCP header by advancing a pointer through the packet via decode and pull16. Neither helper bounds-checks against isize, and decod...

CVE-2026-45842

CVE-2026-45842 concerns the Linux kernel slip module. When rslots are configured to 0 (no receive compression), the code may allocate a NULL rstate and set rslot_limit to 0. The receive path does not guard against this, causing slhc_uncompress() to dereference comp->rstate[x] if the VJ header ...

CVE-2026-45842 slip: reject VJ receive packets on instances with no rstate array

In the Linux kernel, the following vulnerability has been resolved: slip: reject VJ receive packets on instances with no rstate array slhcinit accepts rslots == 0 as a valid configuration, with the documented meaning of 'no receive compression'. In that case the allocation loop in slhcinit is...

CVE-2026-45842

In the Linux kernel, the following vulnerability has been resolved: slip: reject VJ receive packets on instances with no rstate array slhcinit accepts rslots == 0 as a valid configuration, with the documented meaning of 'no receive compression'. In that case the allocation loop in slhcinit is...

PT-2026-43676

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the SLIP Serial Line IP implementation where the slhc init function allows a configuration with rslots set to 0, indicating no receive compression. In this state, the...

CVE-2026-45842

In the Linux kernel, the following vulnerability has been resolved: slip: reject VJ receive packets on instances with no rstate array slhcinit accepts rslots == 0 as a valid configuration, with the documented meaning of 'no receive compression'. In that case the allocation loop in slhcinit is...

CVE-2026-45843

In the Linux kernel, the following vulnerability has been resolved: slip: bound decode reads against the compressed packet length slhcuncompress parses a VJ-compressed TCP header by advancing a pointer through the packet via decode and pull16. Neither helper bounds-checks against isize, and decod...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-005149)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005149 advisory. In the Linux kernel, the following vulnerability has been resolved: slip: make slhcremember more robust against malicious packets syzbot found that slhcremember was...

kernel: slip: make slhc_remember() more robust against malicious packets

A flaw was found in the Linux kernel. The slhcremember function, which handles Serial Line Internet Protocol SLIP header compression, did not properly validate incoming packet sizes and headers. A local attacker could exploit this by sending specially crafted malicious packets, leading to an...

CLSA-2024-1731431756 kernel: Fix of 30 CVEs

tty: ngsm: Fix use-after-free in gsmcleanupmux CVE-2024-50073 - drm/amdkfd: amdkfdfreegttmem clear the correct pointer CVE-2024-49991 - ext4: fix timer use-after-free on failed mount CVE-2024-49960 - ext4: avoid use-after-free in ext4extshowleaf CVE-2024-49889 - ext4: fix slab-use-after-free in...