UBUNTU-CVE-2025-21933

In the Linux kernel, the following vulnerability has been resolved: arm: pgtable: fix NULL pointer dereference issue When updatemmucacherange is called by updatemmucache, the vmf parameter is NULL, which will cause a NULL pointer dereference issue in adjustpte: Unable to handle kernel NULL pointe...

UBUNTU-CVE-2025-21908

In the Linux kernel, the following vulnerability has been resolved: NFS: fix nfsreleasefolio to not deadlock via kcompactd writeback Add PFKCOMPACTD flag and currentiskcompactd helper to check for it so nfsreleasefolio can skip calling nfswbfolio from kcompactd. Otherwise NFS can deadlock waiting...

UBUNTU-CVE-2025-21951

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: pcigeneric: Use pcitryresetfunction to avoid deadlock There are multiple places from where the recovery work gets scheduled asynchronously. Also, there are multiple places where the caller waits synchronously for...

CVE-2025-21951

Technical details about CVE-2025-21951 are not provided in the supplied documents. Monitor official advisories for updates on affected products, impact, and fixes.

CVE-2025-21951 bus: mhi: host: pci_generic: Use pci_try_reset_function() to avoid deadlock

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: pcigeneric: Use pcitryresetfunction to avoid deadlock There are multiple places from where the recovery work gets scheduled asynchronously. Also, there are multiple places where the caller waits synchronously for...

CVE-2025-21951 bus: mhi: host: pci_generic: Use pci_try_reset_function() to avoid deadlock

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: pcigeneric: Use pcitryresetfunction to avoid deadlock There are multiple places from where the recovery work gets scheduled asynchronously. Also, there are multiple places where the caller waits synchronously for...

CVE-2025-21951

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: pcigeneric: Use pcitryresetfunction to avoid deadlock There are multiple places from where the recovery work gets scheduled asynchronously. Also, there are multiple places where the caller waits synchronously for...

CVE-2025-21951 bus: mhi: host: pci_generic: Use pci_try_reset_function() to avoid deadlock

In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: pcigeneric: Use pcitryresetfunction to avoid deadlock There are multiple places from where the recovery work gets scheduled asynchronously. Also, there are multiple places where the caller waits synchronously for...

CVE-2025-21933 arm: pgtable: fix NULL pointer dereference issue

In the Linux kernel, the following vulnerability has been resolved: arm: pgtable: fix NULL pointer dereference issue When updatemmucacherange is called by updatemmucache, the vmf parameter is NULL, which will cause a NULL pointer dereference issue in adjustpte: Unable to handle kernel NULL pointe...

CVE-2025-21911

CVE-2025-21911 concerns the Linux kernel DRM/imagination path where fence release could deadlock due to in-function fence release processing. The fix moves scheduler queue fence release processing to a workqueue, avoiding recursive locking (illustrated by a deadlock involving reservation_ww_class...

CVE-2025-21911 drm/imagination: avoid deadlock on fence release

In the Linux kernel, the following vulnerability has been resolved: drm/imagination: avoid deadlock on fence release Do scheduler queue fence release processing on a workqueue, rather than in the release function itself. Fixes deadlock issues such as the following: 607.400437...

CVE-2025-21911 drm/imagination: avoid deadlock on fence release

In the Linux kernel, the following vulnerability has been resolved: drm/imagination: avoid deadlock on fence release Do scheduler queue fence release processing on a workqueue, rather than in the release function itself. Fixes deadlock issues such as the following: 607.400437...

CVE-2025-21911 drm/imagination: avoid deadlock on fence release

In the Linux kernel, the following vulnerability has been resolved: drm/imagination: avoid deadlock on fence release Do scheduler queue fence release processing on a workqueue, rather than in the release function itself. Fixes deadlock issues such as the following: 607.400437...

CVE-2025-21911

In the Linux kernel, the following vulnerability has been resolved: drm/imagination: avoid deadlock on fence release Do scheduler queue fence release processing on a workqueue, rather than in the release function itself. Fixes deadlock issues such as the following: 607.400437...

CVE-2025-21908

CVE-2025-21908 concerns the Linux kernel NFS subsystem. The issue arises when nfs_release_folio() can deadlock during writeback initiated by kcompactd, triggering a recursive path through NFS and the NFSD loopback on the same host. The patch adds PF_KCOMPACTD and a current_is_kcompactd() helper t...

CVE-2025-21908

In the Linux kernel, the following vulnerability has been resolved: NFS: fix nfsreleasefolio to not deadlock via kcompactd writeback Add PFKCOMPACTD flag and currentiskcompactd helper to check for it so nfsreleasefolio can skip calling nfswbfolio from kcompactd. Otherwise NFS can deadlock waiting...

CVE-2025-21908 NFS: fix nfs_release_folio() to not deadlock via kcompactd writeback

In the Linux kernel, the following vulnerability has been resolved: NFS: fix nfsreleasefolio to not deadlock via kcompactd writeback Add PFKCOMPACTD flag and currentiskcompactd helper to check for it so nfsreleasefolio can skip calling nfswbfolio from kcompactd. Otherwise NFS can deadlock waiting...

CVE-2025-21908 NFS: fix nfs_release_folio() to not deadlock via kcompactd writeback

In the Linux kernel, the following vulnerability has been resolved: NFS: fix nfsreleasefolio to not deadlock via kcompactd writeback Add PFKCOMPACTD flag and currentiskcompactd helper to check for it so nfsreleasefolio can skip calling nfswbfolio from kcompactd. Otherwise NFS can deadlock waiting...

CVE-2025-21908 NFS: fix nfs_release_folio() to not deadlock via kcompactd writeback

In the Linux kernel, the following vulnerability has been resolved: NFS: fix nfsreleasefolio to not deadlock via kcompactd writeback Add PFKCOMPACTD flag and currentiskcompactd helper to check for it so nfsreleasefolio can skip calling nfswbfolio from kcompactd. Otherwise NFS can deadlock waiting...

CVE-2025-21900

CVE-2025-21900 : In the Linux kernel, a deadlock can occur in NFSv4 state recovery for a sillyrenamed file scheduled for delete-on-close, when a server reboot triggers an open reclaim and races with close(). The root cause is a synchronous delegreturn call from put_nfs_open_context() that isn’t m...