kernel-sanitizers

Linux Kernel Sanitizers Note: Most Sanitizers are maintained in the Linux kernel repository and are not hosted here. This repository contains out-of-tree information and prototypes for KASAN, UBSAN, KCSAN, KFENCE, KMSAN, and KTSAN. Note, that KMSAN's code is hosted separately. Questions about KAS...

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

In the Linux kernel, the following vulnerabilities have been resolved: llc: Support for ETHPTR8022 has been removed. The syzbot reported a bug related to uninit-values. 0 llc previously supported ETHP8022 0x0004 and also ETHPTR8022 0x0011. The syzbot exploited this to trigger the bug. The code us...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: usb: aqc111: fix error handling of usbnet read calls Syzkaller, with the help of syzbot, identified an error in the aqc111 driver. This error was caused by incomplete sanitization of the results of usbnet read calls. This...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: ath9khtc: fixed uninitialized values Syzbot reported 2 KMSAN bugs in ath9k. All of these bugs are caused by missing field initialization. In htcconnectservice, svcmetalen and pad are not initialized. Based on the code, it seem...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, Linux, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: ocfs2: Fixed an uninitialized value in ocfs2filereaditer. Syzbot has reported the following KMSAN errors: BUG: KMSAN: Uninitialized value in ocfs2filereaditer+0x9a4/0xf80; ocfs2filereaditer+0x9a4/0xf80; ioread+0x8d4/0x20f0;...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: bpf: Mark the bpf prog stack with kmsanunpoisonmemory in interpreter mode. syzbot reported uninitialized memory usage during maplookup,deleteelem. ========== BUG: KMSAN: uninitvalue in devmaplookupelem kernel/bpf/devmap.c:441...

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

In the Linux kernel, the following vulnerability has been resolved: ALSA: line6: Fixed race conditions related to access to midibuf. There can be concurrent accesses to line6’s midibuf from both the URB completion callback and the rawmidi API. This could trigger KMSAN warnings triggered by...

ROS-20260923-73-0068

The vulnerability in the mm/kmsan/core.c and mm/kmsan/kmsantest.c modules of the Linux operating system relates to the execution of operations beyond the buffer boundaries in memory. Exploiting this vulnerability can allow an attacker to cause a service failure...

SUSE CVE-2026-90221

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: fix use of uninitialized memory in COREINITRSP parsing ncicoreinitrsppacketv1 and ncicoreinitrsppacketv2 parse the COREINITRSP packet without validating that the skb contains enough data. A malformed response e.g...

AZL-102122 CVE-2026-90221 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: nfc: nci: fix use of uninitialized memory in COREINITRSP parsing ncicoreinitrsppacketv1 and ncicoreinitrsppacketv2 parse the COREINITRSP packet without validating that the skb contains enough data. A malformed response e.g...

PT-2026-94569

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the NFC NCI component where the functions nci core init rsp packet v1 and nci core init rsp packet v2 parse the CORE INIT RSP packet without verifying if the socket...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: netlink: added nla be16/32 types to the minlen array BUGs: KMSAN: uninit-value in nlavalidaterangeunsigned, lib/nlattr.c:222 inline BUGs: KMSAN: uninit-value in nlavalidateintrange, lib/nlattr.c:336 inline BUGs: KMSAN:...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ethtool: Fixed an issue where the uninitialized number of lanes was used. It is not possible to set the number of lanes when adjusting link modes using the legacy IOCTL ethtool interface. Since the structure struct...

CVE-2026-89515

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fill in DMA padding bytes in scsiallocsgtables During fuzz testing, the following issue was discovered: BUG: KMSAN: uninit-value in dmamapsgattrs+0x217/0x310 dmamapsgattrs+0x217/0x310 dmamapsgattrs+0x4a/0x70...

AZL-100319 CVE-2026-89515 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fill in DMA padding bytes in scsiallocsgtables During fuzz testing, the following issue was discovered: BUG: KMSAN: uninit-value in dmamapsgattrs+0x217/0x310 dmamapsgattrs+0x217/0x310 dmamapsgattrs+0x4a/0x70...

CVE-2026-89515

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fill in DMA padding bytes in scsiallocsgtables During fuzz testing, the following issue was discovered: BUG: KMSAN: uninit-value in dmamapsgattrs+0x217/0x310 dmamapsgattrs+0x217/0x310 dmamapsgattrs+0x4a/0x70...

UBUNTU-CVE-2026-89515

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fill in DMA padding bytes in scsiallocsgtables During fuzz testing, the following issue was discovered: BUG: KMSAN: uninit-value in dmamapsgattrs+0x217/0x310 dmamapsgattrs+0x217/0x310 dmamapsgattrs+0x4a/0x70...

EUVD-2026-76421

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fill in DMA padding bytes in scsiallocsgtables During fuzz testing, the following issue was discovered: BUG: KMSAN: uninit-value in dmamapsgattrs+0x217/0x310 dmamapsgattrs+0x217/0x310 dmamapsgattrs+0x4a/0x70...

CVE-2026-89515

CVE-2026-89515 is a Linux kernel vulnerability in the SCSI core subsystem, specifically in scsi_alloc_sgtables(). When processing the last unaligned scatterlist element, padding bytes (pad_len) remain uninitialized , causing an uninit-value access in __dma_map_sg_attrs (detected by KMSAN). The tr...

CVE-2026-89515 scsi: core: Fill in DMA padding bytes in scsi_alloc_sgtables()

In the Linux kernel, the following vulnerability has been resolved: scsi: core: Fill in DMA padding bytes in scsiallocsgtables During fuzz testing, the following issue was discovered: BUG: KMSAN: uninit-value in dmamapsgattrs+0x217/0x310 dmamapsgattrs+0x217/0x310 dmamapsgattrs+0x4a/0x70...