SUSE-SU-2026:2841-1 Security update for the Linux Kernel

The SUSE Linux Enterprise 15 SP4 RT kernel was updated to fix various security issues The following security issues were fixed: - CVE-2026-31771: Bluetooth: Ignore HCIERRORCANCELLEDBYHOST on adv set terminated event bsc1264145. - CVE-2026-43038: ipv6: icmp: clear skb2-cb in ip6errgenicmpv6unreach...

Linux Distros Unpatched Vulnerability : CVE-2026-53309

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ocfs2/dlm: fix off-by-one in dlmmatchregions region comparison The local-vs-remote region comparison loop uses '=' instead of '', causing it to read one entry...

SUSE 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...

SUSE CVE-2026-53041

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix listxattr handling when the buffer is full BUG If an OCFS2 inode has both inline and block-based xattrs, listxattr can return a size larger than the caller's buffer when the inline names consume that buffer exactly...

CVE-2026-53309

CVE-2026-53309 relates to the Linux kernel OCFS2 DLM component. A bug in the dlm_match_regions() region comparison used a <= bound, allowing reads beyond the valid range of qr_regions. The fix modifies the loop condition to use

Linux Distros Unpatched Vulnerability : CVE-2026-53040

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ocfs2: validate bgbits during freefrag scan BUG A crafted filesystem can trigger an out-of-bounds bitmap walk when OCFS2IOCINFO is issued with...

Linux Distros Unpatched Vulnerability : CVE-2026-53043

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ocfs2/dlm: validate qrnumregions in dlmmatchregions Patch series ocfs2/dlm: fix two bugs in dlmmatchregions. In dlmmatchregions, the qrnumregions field from a...

Linux Distros Unpatched Vulnerability : CVE-2026-53039

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ocfs2: validate group add input before caching BUG OCFS2IOCGROUPADD can trigger a BUGON in ocfs2setnewbufferuptodate: kernel BUG at fs/ocfs2/uptodate.c:509! Oop...

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-2026-53129

In the Linux kernel, the following vulnerability has been resolved: fs/mbcache: cancel shrink work before destroying the cache mbcachedestroy calls shrinkerfree and then frees all cache entries and the cache itself, but it does not cancel the pending cshrinkwork work item first. If...

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-2026-53043

CVE-2026-53043 affects the OCFS2 DLM in the Linux kernel. A crafted DLM_QUERY_REGION message can set qr_numregions beyond the buffer size (qr_regions) and trigger out-of-bounds reads due to insufficient validation in dlm_match_regions(). The issue is fixed by a patch series that adds a bounds che...

EUVD-2026-38909

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix listxattr handling when the buffer is full BUG If an OCFS2 inode has both inline and block-based xattrs, listxattr can return a size larger than the caller's buffer when the inline names consume that buffer exactly...

CVE-2026-53041

CVE-2026-53041 concerns OCFS2 in the Linux kernel. When an OCFS2 inode has both inline and block-based xattrs, listxattr() could report a size larger than the caller’s buffer if inline names consumed the buffer exactly, triggering a kernel bug/DoS. The root cause was a refactor that used size == ...

CVE-2026-53041 ocfs2: fix listxattr handling when the buffer is full

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix listxattr handling when the buffer is full BUG If an OCFS2 inode has both inline and block-based xattrs, listxattr can return a size larger than the caller's buffer when the inline names consume that buffer exactly...

CVE-2026-53040

Technical details about CVE-2026-53040 are not publicly available in the provided documents accompanying this entry. Monitor for updates; no additional context about affected products or specific exploit paths is provided here.

CVE-2026-53040 ocfs2: validate bg_bits during freefrag scan

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-2026-53039

CVE-2026-53039 concerns the Linux kernel OCFS2 code where OCFS2_IOC_GROUP_ADD could trigger a BUG_ON in ocfs2_set_new_buffer_uptodate due to validating the group input too late. The root cause is user-controlled group block being cached before ocfs2_verify_group_and_input() validates it, and impr...

CVE-2026-53039 ocfs2: validate group add input before caching

In the Linux kernel, the following vulnerability has been resolved: ocfs2: validate group add input before caching BUG OCFS2IOCGROUPADD can trigger a BUGON in ocfs2setnewbufferuptodate: kernel BUG at fs/ocfs2/uptodate.c:509! Oops: invalid opcode: 0000 1 SMP KASAN NOPTI RIP:...

PT-2026-51937

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the dlm match regions function, the qr numregions field from a DLM QUERY REGION network message is used to control loops over the qr regions buffer without adequate validation. A...