CVE-2022-2590-analysis

CVE-2022-2590، Dirty COW مقيد بـ shmem إصدار نواة Linux: Linux/x86 6.0.0-rc1 commit 37887783b3fef877bf34b8992c9199864da4afcb مقدمة: تسمح هذه الثغرة للمهاجم بكتابة محتوى عشوائي إلى صفحة ذاكرة مشتركة للقراءة فقط عن طريق استيفاء شروط الدالة canfollowwritepte، والتي تتحقق من FOLLFORCE وFOLLCOW...

CVE-2026-74482

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: unlock immaprwsem before releasing after-split folios foliosplit keeps dereferencing the mapping after the split: shmemunchargemapping-host and remappage while the folios are still frozen/locked, and...

CVE-2026-74482

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: unlock immaprwsem before releasing after-split folios foliosplit keeps dereferencing the mapping after the split: shmemunchargemapping-host and remappage while the folios are still frozen/locked, and...

CVE-2026-74482 mm/huge_memory: unlock i_mmap_rwsem before releasing after-split folios

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: unlock immaprwsem before releasing after-split folios foliosplit keeps dereferencing the mapping after the split: shmemunchargemapping-host and remappage while the folios are still frozen/locked, and...

EUVD-2026-59675

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: unlock immaprwsem before releasing after-split folios foliosplit keeps dereferencing the mapping after the split: shmemunchargemapping-host and remappage while the folios are still frozen/locked, and...

CVE-2026-74482

CVE-2026-74482 — Linux kernel (mm/huge_memory) . The issue arises during THP folio splitting in mm/huge_memory.c: __folio_split dereferences the mapping after the split while folios are still frozen/locked, and calls remap_page() and shmem_uncharge() before unlocking the after-split folios. This ...

Linux Distros Unpatched Vulnerability : CVE-2026-74482

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm/hugememory: unlock immaprwsem before releasing after-split folios foliosplit keeps dereferencing the mapping after the split: shmemunchargemapping-host and...

kernel: shmem: fix recovery on rename failures

A flaw was found in the Linux kernel's shmem tmpfs filesystem rename operation. Under severe memory pressure, the mapletree insertion used during file rename can fail, and the error recovery path does not properly handle this failure. This can leave the filesystem directory offset tree in an...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: A NULL pointer dereferencing issue was addressed when splitting folio objects. The commit c010d47f107f “mm: thp: splitting huge pages into lower-order pages” introduced a check on the order of the folio objects via...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: drm/panthor: Shmem writes are flushed before mapping buffers with cached mappings. The shmem layer zeroes out new pages using cached mappings. If we do not flush these writes using the CPU, we might leave dirty cachelines behind,...

Linux Distros Unpatched Vulnerability : CVE-2026-53333

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mm/mincore: handle non-swap entries before !CONFIGSWAP guard mincoreswap also fields migration/hwpoison entries and shmem swapin-error entries, which can exist ...

CVE-2026-53333

In the Linux kernel, the following vulnerability has been resolved: mm/mincore: handle non-swap entries before !CONFIGSWAP guard mincoreswap also fields migration/hwpoison entries and shmem swapin-error entries, which can exist on !CONFIGSWAP builds when CONFIGMIGRATION or CONFIGMEMORYFAILURE is...

CVE-2026-53333

In the Linux kernel, the following vulnerability has been resolved: mm/mincore: handle non-swap entries before !CONFIGSWAP guard mincoreswap also fields migration/hwpoison entries and shmem swapin-error entries, which can exist on !CONFIGSWAP builds when CONFIGMIGRATION or CONFIGMEMORYFAILURE is...

CVE-2026-53333

CVE-2026-53333 relates to the Linux kernel mm/mincore path. The issue arises when handling non-swap entries on builds without swap support: mincore_pte_range() could spuriously WARN and report pages as nonresident because the !IS_ENABLED(CONFIG_SWAP) guard was evaluated before the non-swap-entry ...

EUVD-2026-40967

In the Linux kernel, the following vulnerability has been resolved: mm/mincore: handle non-swap entries before !CONFIGSWAP guard mincoreswap also fields migration/hwpoison entries and shmem swapin-error entries, which can exist on !CONFIGSWAP builds when CONFIGMIGRATION or CONFIGMEMORYFAILURE is...

CVE-2026-53333 mm/mincore: handle non-swap entries before !CONFIG_SWAP guard

In the Linux kernel, the following vulnerability has been resolved: mm/mincore: handle non-swap entries before !CONFIGSWAP guard mincoreswap also fields migration/hwpoison entries and shmem swapin-error entries, which can exist on !CONFIGSWAP builds when CONFIGMIGRATION or CONFIGMEMORYFAILURE is...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel before version 6.0.3, the file drivers/gpu/drm/virtio/virtgpuobject.c misinterprets the return value of drmgemshmemgetsgtable. It expects the value to be NULL in the error case, but in reality, it is an error pointer...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: mm/shmem: Disable the PMD-sized page cache if necessary. For shmem files, it’s possible that a PMD-sized page cache cannot be supported by xarray. For example, a 512MB page cache on ARM64 when the base page size is 64KB cannot be...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/tests: shmem: Hold the reservation lock during the purge operation. The reservation lock of the GEM object must be held during calls to the purge operation of that object. The tests use drmgemshmempurgelocked, which caused...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/tests: shmem: Holding the reservation lock around madvise Acquiring and releasing the GEM object’s reservation lock during calls to the object’s madvide operation. The tests use drmgemshmemmadviselocked, which caused errors...