CVE-2026-80638

CVE-2026-80638 is an out-of-bounds write in the Linux kernel's ocfs2 filesystem module, specifically in ocfs2_remove_refcount_extent(). When the last leaf block is removed from a refcount tree, a bulk memset on &rb->rf_records executes while rl_count is 0 (since rf_list.l_tree_depth aliases rf...

EUVD-2026-67514

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix out-of-bounds write in ocfs2removerefcountextent BUG Unlinking a refcounted file whose refcount tree has leaf blocks triggers a fortify panic due to an out-of-bounds write. CAUSE When the last leaf block is removed fro...

CVE-2026-80638 ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix out-of-bounds write in ocfs2removerefcountextent BUG Unlinking a refcounted file whose refcount tree has leaf blocks triggers a fortify panic due to an out-of-bounds write. CAUSE When the last leaf block is removed fro...

CVE-2026-80638 ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix out-of-bounds write in ocfs2removerefcountextent BUG Unlinking a refcounted file whose refcount tree has leaf blocks triggers a fortify panic due to an out-of-bounds write. CAUSE When the last leaf block is removed fro...

CVE-2026-80615 net: dst_metadata: fix false-positive memcpy overflow in tun_dst_unclone

In the Linux kernel, the following vulnerability has been resolved: net: dstmetadata: fix false-positive memcpy overflow in tundstunclone kmallocflex in metadatadstalloc sets countedby for the structure to the optionslen, which is then initialized to zero. Later, we're initializing the structure ...

PT-2026-82940

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A runtime assertion issue exists in the cxlctl get supported features function. The system triggers a fortify panic due to a false positive buffer overflow detection where the entries...

PT-2026-82938

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds write occurs in the ocfs2 remove refcount extent function when unlinking a refcounted file that has leaf blocks in its refcount tree. The issue arises when the last leaf...

PT-2026-82939

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A runtime assertion issue exists in the setup xor mapping function. The system triggers a fortify panic due to a false positive report of a potential buffer overflow in the xormaps array...

CVE-2026-80638: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix out-of-bounds write in ocfs2removerefcountextent BUG Unlinking a refcounted file whose refcount tree has leaf blocks triggers a fortify panic due to an out-of-bounds write. CAUSE When the last leaf block is removed fro...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: ovl: Use the “buf” flexible array as the destination for memcpy. The “buf” flexible array must be used as the destination for memcpy to avoid false positive run-time warnings caused by the recent FORTIFYSOURCE hardening measures:...

CVE-2026-68293

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix MCIA register buffer overflow on 32 dword reads The MCIA register can return up to 32 dwords 128 bytes when the device advertises the mcia32dwords capability, but struct mlx5ifcmciaregbits only defines dword0..11,...

samba security update

0:4.23.5-109 - Bump build number 0:4.23.5-108 - Security release for CVE-2026-1933 CVE-2026-2340 CVE-2026-3012 CVE-2026-4480 CVE-2026-40170 CVE-2026-4408 - resolves: RHEL-156279 - CVE-2026-1933 CVE-2026-2340 CVE-2026-3012 samba: various flaws - resolves: RHEL-161644 - CVE-2026-4480 - Fix Samba...

CVE-2026-57451

A flaw in Vim allows an attacker to cause a Denial of Service DoS via an application crash. If a user opens a maliciously crafted undo file, an out-of-bounds read is triggered in the gettextprops function due to missing length validation on property counts. Mitigation Users are advised to avoid...

samba security update

0:4.23.5-10 - Bump build number 0:4.23.5-9 - Security release for CVE-2026-1933 CVE-2026-2340 CVE-2026-3012 CVE-2026-4480 CVE-2026-40170 CVE-2026-4408 - resolves: RHEL-156319 - CVE-2026-1933 CVE-2026-2340 CVE-2026-3012 samba: various flaws - resolves: RHEL-161657 - CVE-2026-4480 - Fix Samba...

SUSE CVE-2026-11793

A stack buffer overflow flaw was found in 389 Directory Server. The checkPrefix function in pw.c copies an attacker-controlled algorithm ID into a 256-byte stack buffer without bounds checking when parsing reversible-encrypted attribute values. An attacker with Directory Manager privileges can...

CVE-2026-11793

A stack buffer overflow flaw was found in 389 Directory Server. The checkPrefix function in pw.c copies an attacker-controlled algorithm ID into a 256-byte stack buffer without bounds checking when parsing reversible-encrypted attribute values. An attacker with Directory Manager privileges can...

DEBIAN-CVE-2026-11793

A stack buffer overflow flaw was found in 389 Directory Server. The checkPrefix function in pw.c copies an attacker-controlled algorithm ID into a 256-byte stack buffer without bounds checking when parsing reversible-encrypted attribute values. An attacker with Directory Manager privileges can...

EUVD-2026-35423

A stack buffer overflow flaw was found in 389 Directory Server. The checkPrefix function in pw.c copies an attacker-controlled algorithm ID into a 256-byte stack buffer without bounds checking when parsing reversible-encrypted attribute values. An attacker with Directory Manager privileges can...

samba security update

4.19.4-16.0.1 - s3: winbindd: winbinddpam: fix leak in extractpacvrfysigs Orabug: 36518285 - s3:passdb: Do not leak memory in pdbtdb Orabug: 36371377 - Gluster volumes not accessible via Samba due to missing samba-vfs-glusterfs in OL8 Orabug: 30205755 4.19.4-16 - resolves: RHEL-156322 - Fix...

CVE-2026-46149

A flaw was found in the Linux kernel's SCSI target subsystem. This vulnerability, a buffer overflow, occurs in the tgptgpmembersshow function when processing long iSCSI IQN names. An attacker could potentially exploit this by providing a specially crafted input, leading to the disclosure of...