CVE-2025-21919

CVE-2025-21919 (Linux kernel sched/fair): A memory-corruption issue was fixed in child_cfs_rq_on_list. The prev pointer used in converting to a cfs_rq could originate from rq->leaf_cfs_rq_list, making container_of incorrect and risking memory fault or garbage reads. The patch adds a guard: aft...

CVE-2025-21919 sched/fair: Fix potential memory corruption in child_cfs_rq_on_list

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Fix potential memory corruption in childcfsrqonlist childcfsrqonlist attempts to convert a 'prev' pointer to a cfsrq. This 'prev' pointer can originate from struct rq's leafcfsrqlist, making the conversion invalid and...

CVE-2025-21920

CVE-2025-21920 (Linux kernel VLAN subtype): The issue occurs when creating VLAN devices on non-Ethernet underlying devices, which can trigger an out-of-bounds read by dev_mc_add due to __dev_mc_add using dev->addr_len as the multicast length. The underlying cause is not enforcing the underlyin...

CVE-2025-21918 usb: typec: ucsi: Fix NULL pointer access

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Fix NULL pointer access Resources should be released only after all threads that utilize them have been destroyed. This commit ensures that resources are not released prematurely by waiting for the associated...

CVE-2025-21916 usb: atm: cxacru: fix a flaw in existing endpoint checks

In the Linux kernel, the following vulnerability has been resolved: usb: atm: cxacru: fix a flaw in existing endpoint checks Syzbot once again identified a flaw in usb endpoint checking, see 1. This time the issue stems from a commit authored by me 2eabb655a968 "usb: atm: cxacru: fix endpoint...

CVE-2025-21916

CVE-2025-21916 is part of Unity Linux/Fedora kernel advisories describing a fix for a flaw in USB ATM CXACRU endpoint checking. The root cause was insufficient verification of USB endpoint addresses in cxacru_bind(), leading to incorrect URB handling (e.g., bogus urb xfers). The mitigation is to ...

CVE-2025-21914

CVE-2025-21914 affects the Linux kernel Slimbus path (slimbus) where, in delayed interrupt scenarios, slim_do_transfer() returns a timeout but fails to free the associated transaction ID (TID). This leads to invalid memory access inside qcom_slim_ngd_rx_msgq_cb(), potentially causing a kernel pan...

CVE-2025-21913 x86/amd_nb: Use rdmsr_safe() in amd_get_mmconfig_range()

In the Linux kernel, the following vulnerability has been resolved: x86/amdnb: Use rdmsrsafe in amdgetmmconfigrange Xen doesn't offer MSRFAM10HMMIOCONFBASE to all guests. This results in the following warning: unchecked MSR access error: RDMSR from 0xc0010058 at rIP: 0xffffffff8101d19f...

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-2025-21910

CVE-2025-21910 affects the Linux kernel (wifi: cfg80211: regulatory) where invalid user regulatory hints could pass through via regulatory_hint_user() into user_alpha2[]. The root cause involves isalpha() handling non-Latin symbols and a subsequent toupper() mutation that bypassed a prior check. ...

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-2025-21908

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-2025-21909 wifi: nl80211: reject cooked mode if it is set along with other flags

In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: reject cooked mode if it is set along with other flags It is possible to set both MONITORFLAGCOOKFRAMES and MONITORFLAGACTIVE flags simultaneously on the same monitor interface from the userspace. This causes a...

CVE-2025-21907 mm: memory-failure: update ttu flag inside unmap_poisoned_folio

In the Linux kernel, the following vulnerability has been resolved: mm: memory-failure: update ttu flag inside unmappoisonedfolio Patch series "mm: memoryfailure: unmap poisoned folio during migrate properly", v3. Fix two bugs during folio migration if the folio is poisoned. This patch of 3: Comm...

CVE-2025-21907

CVE-2025-21907 documents a Linux kernel memory-management issue: during folio migration, unmap_poisoned_folio() must set TTU_HWPOISON for anon folio (and align policy with hwpoison_user_mappings for pagecache). The patch series mm: memory_failure: unmap poisoned folio during migrate properly fixe...

CVE-2025-21905 wifi: iwlwifi: limit printed string from FW file

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: limit printed string from FW file There's no guarantee here that the file is always with a NUL-termination, so reading the string may read beyond the end of the TLV. If that's the last TLV in the file, it can perha...

CVE-2025-21904 caif_virtio: fix wrong pointer check in cfv_probe()

In the Linux kernel, the following vulnerability has been resolved: caifvirtio: fix wrong pointer check in cfvprobe delvqs frees virtqueues, therefore cfv-vqtx pointer should be checked for NULL before calling it, not cfv-vdev. Also the current implementation is redundant because the pointer...

CVE-2025-21903 mctp i3c: handle NULL header address

In the Linux kernel, the following vulnerability has been resolved: mctp i3c: handle NULL header address daddr can be NULL if there is no neighbour table entry present, in that case the tx packet should be dropped. saddr will usually be set by MCTP core, but check for NULL in case a packet is...

CVE-2025-21900 NFSv4: Fix a deadlock when recovering state on a sillyrenamed file

In the Linux kernel, the following vulnerability has been resolved: NFSv4: Fix a deadlock when recovering state on a sillyrenamed file If the file is sillyrenamed, and slated for delete on close, it is possible for a server reboot to triggeer an open reclaim, with can again race with the...