UBUNTU-CVE-2025-21968

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix slab-use-after-free on hdcpwork Why A slab-use-after-free is reported when HDCP is destroyed but the propertyvalidatedwork queue is still running. How Cancel the delayed work when destroying workqueue. cherry...

UBUNTU-CVE-2025-21983

In the Linux kernel, the following vulnerability has been resolved: mm/slab/kvfreercu: Switch to WQMEMRECLAIM wq Currently kvfreercu APIs use a system workqueue which is "systemunboundwq" to driver RCU machinery to reclaim a memory. Recently, it has been noted that the following kernel warning ca...

UBUNTU-CVE-2025-21923

In the Linux kernel, the following vulnerability has been resolved: HID: hid-steam: Fix use-after-free when detaching device When a hid-steam device is removed it must clean up the clienthdev used for intercepting hidraw access. This can lead to scheduling deferred work to reattach the input...

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...

UBUNTU-CVE-2025-21969

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Fix slab-use-after-free Read in l2capsendcmd After the hci sync command releases l2capconn, the hci receive data work queue references the released l2capconn when sending to the upper layer. Add hci dev lock to...

UBUNTU-CVE-2025-21979

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: cancel wiphywork before freeing wiphy A wiphywork can be queued from the moment the wiphy is allocated and initialized i.e. wiphynewnm. When a wiphywork is queued, the rdev::wiphywork is getting queued. If wiphyfr...

UBUNTU-CVE-2025-21952

In the Linux kernel, the following vulnerability has been resolved: HID: corsair-void: Update power supply values with a unified work handler corsairvoidprocessreceiver can be called from an interrupt context, locking batterymutex in it was causing a kernel panic. Fix it by moving the critical...

CVE-2025-21979 wifi: cfg80211: cancel wiphy_work before freeing wiphy

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: cancel wiphywork before freeing wiphy A wiphywork can be queued from the moment the wiphy is allocated and initialized i.e. wiphynewnm. When a wiphywork is queued, the rdev::wiphywork is getting queued. If wiphyfr...

CVE-2025-21979

CVE-2025-21979 affects the Linux kernel wifi stack (cfg80211). A wiphy_work can be queued as soon as the wiphy is allocated (wiphy_new_nm). If wiphy_free runs before the rdev::wiphy_work executes, the wiphy memory is freed and later accessed, leading to a use-after-free. The fix is to cancel the ...

CVE-2025-21968 drm/amd/display: Fix slab-use-after-free on hdcp_work

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix slab-use-after-free on hdcpwork Why A slab-use-after-free is reported when HDCP is destroyed but the propertyvalidatedwork queue is still running. How Cancel the delayed work when destroying workqueue. cherry...

CVE-2025-21968

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix slab-use-after-free on hdcpwork Why A slab-use-after-free is reported when HDCP is destroyed but the propertyvalidatedwork queue is still running. How Cancel the delayed work when destroying workqueue. cherry...

CVE-2025-21960

CVE-2025-21960 is addressed in the TencentOS Server 4 kernel advisory (TSSA-2025:0348). The issue is in nbd reconnect handling after disconnect, potentially enabling a use-after-free via recv_work when nbd_config is freed. The advisory states the root cause: in nbd_genl_disconnect(), NBD_RT_BOUND...

CVE-2025-21960 eth: bnxt: do not update checksum in bnxt_xdp_build_skb()

In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: do not update checksum in bnxtxdpbuildskb The bnxtrxpkt updates ipsummed value at the end if checksum offload is enabled. When the XDP-MB program is attached and it returns XDPPASS, the bnxtxdpbuildskb is called to...

CVE-2025-21960 eth: bnxt: do not update checksum in bnxt_xdp_build_skb()

In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: do not update checksum in bnxtxdpbuildskb The bnxtrxpkt updates ipsummed value at the end if checksum offload is enabled. When the XDP-MB program is attached and it returns XDPPASS, the bnxtxdpbuildskb is called to...

CVE-2025-21952 HID: corsair-void: Update power supply values with a unified work handler

In the Linux kernel, the following vulnerability has been resolved: HID: corsair-void: Update power supply values with a unified work handler corsairvoidprocessreceiver can be called from an interrupt context, locking batterymutex in it was causing a kernel panic. Fix it by moving the critical...

CVE-2025-21952 HID: corsair-void: Update power supply values with a unified work handler

In the Linux kernel, the following vulnerability has been resolved: HID: corsair-void: Update power supply values with a unified work handler corsairvoidprocessreceiver can be called from an interrupt context, locking batterymutex in it was causing a kernel panic. Fix it by moving the critical...

CVE-2025-21952

In the Linux kernel, the following vulnerability has been resolved: HID: corsair-void: Update power supply values with a unified work handler corsairvoidprocessreceiver can be called from an interrupt context, locking batterymutex in it was causing a kernel panic. Fix it by moving the critical...

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-2025-21923 HID: hid-steam: Fix use-after-free when detaching device

In the Linux kernel, the following vulnerability has been resolved: HID: hid-steam: Fix use-after-free when detaching device When a hid-steam device is removed it must clean up the clienthdev used for intercepting hidraw access. This can lead to scheduling deferred work to reattach the input...

CVE-2025-21923

Summary of CVE-2025-21923 (Linux kernel): The vulnerability affects the HID subsystem, specifically the hid-steam driver. When detaching a hid-steam device, the cleanup of the client_hdev used to intercept hidraw access could be scheduled for deferred work reattachment. The previous cleanup order...