Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from a folio unbinding error in iouring resource handling, which could lead to memory management exceptions...

CVE-2025-38220

In the Linux kernel, the following vulnerability has been resolved: ext4: only dirty folios when data journaling regular files fstest generic/388 occasionally reproduces a crash that looks as follows: BUG: kernel NULL pointer dereference, address: 0000000000000000 ... Call Trace:...

UBUNTU-CVE-2025-38220

In the Linux kernel, the following vulnerability has been resolved: ext4: only dirty folios when data journaling regular files fstest generic/388 occasionally reproduces a crash that looks as follows: BUG: kernel NULL pointer dereference, address: 0000000000000000 ... Call Trace:...

CVE-2025-38220 ext4: only dirty folios when data journaling regular files

In the Linux kernel, the following vulnerability has been resolved: ext4: only dirty folios when data journaling regular files fstest generic/388 occasionally reproduces a crash that looks as follows: BUG: kernel NULL pointer dereference, address: 0000000000000000 ... Call Trace:...

PT-2025-27995

Name of the Vulnerable Software and Affected Versions: Linux kernel affected versions not specified Description: A vulnerability in the Linux kernel has been identified, which can cause a kernel NULL pointer dereference when processing a symlink inode from the orphan list. This issue arises due t...

SUSE CVE-2025-38102

In the Linux kernel, the following vulnerability has been resolved: VMCI: fix race between vmcihostsetupnotify and vmcictxunsetnotify During our test, it is found that a warning can be trigger in trygrabfolio as follow: ------------ cut here ------------ WARNING: CPU: 0 PID: 1678 at mm/gup.c:147...

AZL-64496 CVE-2025-38102 affecting package kernel for versions less than 6.6.96.1-1

In the Linux kernel, the following vulnerability has been resolved: VMCI: fix race between vmcihostsetupnotify and vmcictxunsetnotify During our test, it is found that a warning can be trigger in trygrabfolio as follow: ------------ cut here ------------ WARNING: CPU: 0 PID: 1678 at mm/gup.c:147...

PT-2025-36319

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains an issue within the shrink folio list function related to handling hardware-poisoned large folios. Specifically, the function fails to correctly handle large...

CVE-2025-38050

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix kernel NULL pointer dereference when replacing free hugetlb folios A kernel crash was observed when replacing free hugetlb folios: BUG: kernel NULL pointer dereference, address: 0000000000000028 PGD 0 P4D 0 Oops:...

SUSE CVE-2022-50107

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix memory leak when using fscache If we hit the 'index == nextcached' case, we leak a refcount on the struct page. Fix this by using readaheadfolio which takes care of the refcount for you...

CVE-2022-50107

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix memory leak when using fscache If we hit the 'index == nextcached' case, we leak a refcount on the struct page. Fix this by using readaheadfolio which takes care of the refcount for you...

DEBIAN-CVE-2022-50107

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix memory leak when using fscache If we hit the 'index == nextcached' case, we leak a refcount on the struct page. Fix this by using readaheadfolio which takes care of the refcount for you...

UBUNTU-CVE-2022-50107

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix memory leak when using fscache If we hit the 'index == nextcached' case, we leak a refcount on the struct page. Fix this by using readaheadfolio which takes care of the refcount for you...

CVE-2022-50107

CVE-2022-50107 concerns a Linux kernel vulnerability in the CIFS/fscache path where, if the index == next_cached case is hit, a refcount on the struct page could leak. The fix implemented is to switch to readahead_folio(), which manages the refcount automatically. Affected component: Linux kernel...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: NFS: fixed nfsreleasefolio to prevent deadlock caused by kcompactd writeback. Added the PFKCOMPACTD flag and the currentiskcompactd helper to check for it, so that nfsreleasefolio can skip calling nfswbfolio from kcompactd...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: hwpoison, memoryhotplug: lock folio before unmap hwpoisoned folio Commit b15c87263a69 “hwpoison, memoryhotplug: allow hwpoisoned pages to be offline” adds page poisoning checks in domigraterange, in order to make offline hwpoison...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: mm/vmscan: Do not try to reclaim hwpoison folio Syzkaller reports a bug as follows: Injecting memory failure for pfn 0x18b00e at process virtual address 0x20ffd000 Memory failure: 0x18b00e: Dirty swapcache page still referenced b...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerabilities have been resolved: btrfs: Proper folio cleanup should be performed when rundelallocnocow fails. BUG With CONFIGDEBUGVM set, test case generic/476 may crash due to the following VMBUGONFOLIO issues: - BTRFS error device dm-3: cowfilerange failed;...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: fs/erofs/fileio: Call erofsonlinefoliosplit after bioaddfolio If bioaddfolio fails because it is full, erofsfileioscanfolio needs to submit the I/O request via erofsfileiorqsubmit and allocate a new I/O request with an empty stru...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: Block: Fix to add folio to bio. A size of 4GB for folio is possible on some ARCHs, such as aarch64. A size of 16GB for hugepage is also supported. However, the “offset” of folio cannot be stored in “unsigned int”, which causes a...