UBUNTU-CVE-2025-39868

In the Linux kernel, the following vulnerability has been resolved: erofs: fix runtime warning on truncatefoliobatchexceptionals Commit 0e2f80afcfa6"fs/dax: ensure all pages are idle prior to filesystem unmount" introduced the WARNONONCE to capture whether the filesystem has removed all DAX entri...

UBUNTU-CVE-2025-39878

In the Linux kernel, the following vulnerability has been resolved: ceph: fix crash after fscryptencryptpagecacheblocks error The function movedirtyfolioinpagearray was created by commit ce80b76dd327 "ceph: introduce cephprocessfoliobatch method" by moving code from cephwritepagesstart to this...

UBUNTU-CVE-2025-39879

In the Linux kernel, the following vulnerability has been resolved: ceph: always call cephshiftunusedfoliosleft The function cephprocessfoliobatch sets foliobatch entries to NULL, which is an illegal state. Before foliobatchrelease crashes due to this API violation, the function...

CVE-2025-39888 fuse: Block access to folio overlimit

In the Linux kernel, the following vulnerability has been resolved: fuse: Block access to folio overlimit syz reported a slab-out-of-bounds Write in fusedevdowrite. When the number of bytes to be retrieved is truncated to the upper limit by fc-maxpages and there is an offset, the oob is triggered...

CVE-2025-39888

CVE-2025-39888 concerns a Linux kernel issue in fuse: Block access to folio overlimit. A slab-out-of-bounds write occurred in fuse_dev_do_write when the OOB condition could trigger if bytes to retrieve are truncated to fc->max_pages and an offset is present. The root cause was not fully detail...

CVE-2025-39888 fuse: Block access to folio overlimit

In the Linux kernel, the following vulnerability has been resolved: fuse: Block access to folio overlimit syz reported a slab-out-of-bounds Write in fusedevdowrite. When the number of bytes to be retrieved is truncated to the upper limit by fc-maxpages and there is an offset, the oob is triggered...

CVE-2025-39888 fuse: Block access to folio overlimit

In the Linux kernel, the following vulnerability has been resolved: fuse: Block access to folio overlimit syz reported a slab-out-of-bounds Write in fusedevdowrite. When the number of bytes to be retrieved is truncated to the upper limit by fc-maxpages and there is an offset, the oob is triggered...

CVE-2025-39879 ceph: always call ceph_shift_unused_folios_left()

In the Linux kernel, the following vulnerability has been resolved: ceph: always call cephshiftunusedfoliosleft The function cephprocessfoliobatch sets foliobatch entries to NULL, which is an illegal state. Before foliobatchrelease crashes due to this API violation, the function...

CVE-2025-39879 ceph: always call ceph_shift_unused_folios_left()

In the Linux kernel, the following vulnerability has been resolved: ceph: always call cephshiftunusedfoliosleft The function cephprocessfoliobatch sets foliobatch entries to NULL, which is an illegal state. Before foliobatchrelease crashes due to this API violation, the function...

CVE-2025-39879

CVE-2025-39879 pertains to the Linux kernel Ceph code path. The issue revolves around ceph_process_folio_batch() leaving folio_batch entries as NULL, an illegal state that could lead to crashes if folio_batch_release() dereferences them. The documented root cause describes that earlier code inten...

CVE-2025-39879 ceph: always call ceph_shift_unused_folios_left()

In the Linux kernel, the following vulnerability has been resolved: ceph: always call cephshiftunusedfoliosleft The function cephprocessfoliobatch sets foliobatch entries to NULL, which is an illegal state. Before foliobatchrelease crashes due to this API violation, the function...

CVE-2025-39868 erofs: fix runtime warning on truncate_folio_batch_exceptionals()

In the Linux kernel, the following vulnerability has been resolved: erofs: fix runtime warning on truncatefoliobatchexceptionals Commit 0e2f80afcfa6"fs/dax: ensure all pages are idle prior to filesystem unmount" introduced the WARNONONCE to capture whether the filesystem has removed all DAX entri...

CVE-2025-39868 erofs: fix runtime warning on truncate_folio_batch_exceptionals()

In the Linux kernel, the following vulnerability has been resolved: erofs: fix runtime warning on truncatefoliobatchexceptionals Commit 0e2f80afcfa6"fs/dax: ensure all pages are idle prior to filesystem unmount" introduced the WARNONONCE to capture whether the filesystem has removed all DAX entri...

CVE-2025-39868

CVE-2025-39868 describes a Linux kernel vulnerability where a runtime warning (WARN_ON_ONCE) could be triggered during unmount due to how erofs (and related DAX entries) were handled. The root cause, as noted in the description, is a fix introduced by commit 0e2f80afcfa6 that added WARN_ON_ONCE t...

CVE-2025-39868

In the Linux kernel, the following vulnerability has been resolved: erofs: fix runtime warning on truncatefoliobatchexceptionals Commit 0e2f80afcfa6"fs/dax: ensure all pages are idle prior to filesystem unmount" introduced the WARNONONCE to capture whether the filesystem has removed all DAX entri...

CVE-2025-39868 erofs: fix runtime warning on truncate_folio_batch_exceptionals()

In the Linux kernel, the following vulnerability has been resolved: erofs: fix runtime warning on truncatefoliobatchexceptionals Commit 0e2f80afcfa6"fs/dax: ensure all pages are idle prior to filesystem unmount" introduced the WARNONONCE to capture whether the filesystem has removed all DAX entri...

PT-2025-39136

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.15.10-cm4all1-es Description The Linux kernel contains a flaw within the Ceph subsystem related to folio batch handling. Specifically, the ceph shift unused folios left function is not consistently called after...

PT-2025-39145

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw related to fuse. Specifically, a slab-out-of-bounds write condition was identified in the fuse dev do write function. This issue occurs when the number o...

PT-2025-39125

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.16.0+ 6 Description The Linux kernel contained an issue where a runtime warning occurred in the truncate folio batch exceptionals function. This was due to a missing fix in erofs following a commit that address...

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 the Linux kernel that stems from mishandling of the movedirtyfolioinpagearray function error, which could lead to a kernel crash...