CVE-2026-80892

A flaw was found in the Linux kernel's EROFS Enhanced Read-Only File System component. On systems with a high number of processing units, mounting a specially crafted EROFS image can cause the kernel to allocate an excessive amount of memory for LZMA decompression streams. This uncontrolled memor...

CVE-2026-97605

A flaw was found in the Linux kernel. When resizing the decompression stream pool in the Enhanced Read-Only File System EROFS encounters a memory allocation failure, an uninitialized stream is improperly retained in the active pool. A local user accessing or decompressing an affected filesystem c...

OESA-2026-4358 kernel security update

The Linux Kernel, the operating system core itself. Security Fixes: In the Linux kernel, the following vulnerability has been resolved: erofs: fix inline data read failure for ztailpacking pclusters Compressed folios for ztailpacking pclusters must be valid before adding these pclusters to I/O...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: erofs: The issue of generating a order = MAXORDER warning due to an intentionally crafted negative isize has been fixed. As reported by syzbot 1, the root cause is that the isize field is a signed type, and a negative isize value...

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

In the Linux kernel, the following vulnerability has been resolved: erofs: Stop parsing non-compact HEAD indexes if clusterofs is invalid Syzbot generated a crafted image with a non-compact HEAD index of clusterofs 33024. Valid numbers should be between 0 and lclustersize-1, which causes the...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: erofs: cap LZMA stream pool size In fs/erofs/decompressorlzma.c, the module-global MicroLZMA stream pool is sized based on numpossiblecpus. This occurs when the lzmastreams module parameter is unset. In such cases,...

CVE-2026-90161

A flaw was found in the Linux kernel's erofs filesystem. A local attacker could craft a malicious erofs image containing invalid interlaced ztailpacking pclusters. When this image is processed, it could lead to an out-of-bounds read from kernel memory. This vulnerability may allow an attacker to...

Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-500374)

The remote Oracle Linux 10 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-500374 advisory. - mptcp: fix bad accounting in mptcpsubflowpushpending Paolo Abeni Orabug: 40078583 CVE-2026-97522 - mptcp: close race between scheduler and sta...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: erofs: Properly handling NONHEAD !delta1 lclusters. The syzbot tool reported a warning in iomapiterdone: iomapfiemap+0x73b/0x9b0 fs/iomap/fiemap.c:80 ioctlfiemap fs/ioctl.c:220 inline Generally, NONHEAD lclusters will not have...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: erofs: Add GFPNOIO to the bio completion if necessary. The bio completion path in the process context e.g., dm-verity directly calls decompression instead of triggering another workqueue context for minimal scheduling latency. Th...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: erofs: Proper handling of overlapped pclusters from crafted images. syzbot reported a task hanging issue due to a deadlock situation where it was waiting for the folio lock of a cached folio that would be used for cache I/Os...

Astra Linux – Vulnerability in Linux 5.15, Linux

In the Linux kernel, the following vulnerability has been resolved: erofs: Fix for pcluster use-after-free on UP platforms During stress testing with CONFIGSMP disabled, KASAN reports the following issue: ================================================================== BUG: KASAN: Use-after-fre...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: erofs/zmap.c: Corrected incorrect offset calculation The effective offset to be added to the length was incorrectly calculated, resulting in iomap-length being set to 0, which triggered a WARNON in iomapiterdone. This issue was...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: erofs: Fixed a memory leak caused by LZMA global compressed deduplication. When testing microLZMA EROFS images with the new global compressed deduplication feature enabled -Ededupe, I discovered that some short-lived temporary...

kernel: Linux kernel: Denial of Service in erofs filesystem

A flaw was found in the Linux kernel's erofs filesystem. A remote attacker can exploit this vulnerability without requiring any privileges. This issue occurs when insufficient memory during a memory mapping operation vmmapram in the bio completion path leads to a deadlock, causing a Denial of...

[SECURITY] Fedora 45 Update: erofs-utils-1.9.4-2.fc45

EROFS stands for Enhanced Read-Only File System. It aims to be a general read-only file system solution for various use cases instead of just focusing on saving storage space without considering runtime performance. This package includes tools to create, check, and extract EROFS images...

SUSE CVE-2026-98067

In the Linux kernel, the following vulnerability has been resolved: erofs: disable LZ4 rolling decompression for now LZ4 rolling decompression 1 was introduced to reduce the memory footprint of temporary pages: For many cases, it is needed for users to read small data within a compressed extent...

SUSE CVE-2026-98005

In the Linux kernel, the following vulnerability has been resolved: erofs: delimit inodeshare cache key components Previously, inodeshare keys were encoded as follows: fingerprint || domainid It would be better to have a separator between the fingerprint and domain ID so that the fingerprint won'...

SUSE CVE-2026-97605

In the Linux kernel, the following vulnerability has been resolved: erofs: preserve LZMA decoders on resize failure The pool-resize path frees each stream's old decoder before allocating its replacement. If an allocation fails after some streams have already been replaced, the failed stream is pu...

CVE-2026-98067

A flaw was found in the Linux kernel's EROFS Enhanced Read-Only File System. The rolling decompression mechanism used for LZ4-compressed files assumes that data is always copied forward in memory. On certain system architectures, the underlying memory copy operation can copy backward, invalidatin...