CVE-2025-21947 ksmbd: fix type confusion via race condition when using ipc_msg_send_request

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix type confusion via race condition when using ipcmsgsendrequest req-handle is allocated using ksmbdacquireid&ipcida, based on idaalloc. req-handle from ksmbdipcloginrequest and FSCTLPIPETRANSCEIVE ioctl can be same and ...

CVE-2025-21945 ksmbd: fix use-after-free in smb2_lock

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in smb2lock If smblock-zerolen has value, -llist of smblock is not delete and flock is old one. It will cause use-after-free on error handling routine...

CVE-2025-21943 gpio: aggregator: protect driver attr handlers against module unload

In the Linux kernel, the following vulnerability has been resolved: gpio: aggregator: protect driver attr handlers against module unload Both newdevicestore and deletedevicestore touch module global resources e.g. gpioaggregatorlock. To prevent race conditions with module unload, a reference need...

CVE-2025-21941 drm/amd/display: Fix null check for pipe_ctx->plane_state in resource_build_scaling_params

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix null check for pipectx-planestate in resourcebuildscalingparams Null pointer dereference issue could occur when pipectx-planestate is null. The fix adds a check to ensure 'pipectx-planestate' is not null befo...

CVE-2025-21939

CVE-2025-21939 affects the Linux kernel DRM: XEHmm code path. The root cause is dereference of struct page pointers obtained from hmm_range_fault() without holding the notifier lock (and with an invalid/unstable seqno), risking access to pages not owned by the kernel during sg-table construction....

CVE-2025-21937 Bluetooth: Add check for mgmt_alloc_skb() in mgmt_remote_name()

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Add check for mgmtallocskb in mgmtremotename Add check for the return value of mgmtallocskb in mgmtremotename to prevent null pointer dereference...

CVE-2025-21937

CVE-2025-21937 (Linux kernel) : The vulnerability concerns a NULL dereference in Bluetooth mgmt_remote_name() from an unchecked mgmt_alloc_skb() return value. The fix adds a check for mgmt_alloc_skb() and validates its return value in mgmt_remote_name(), mitigating the issue. Connected advisories...

CVE-2025-21933

CVE-2025-21933: In the Linux kernel (ARM), a NULL pointer dereference can occur in pgtable when update_mmu_cache_range() is invoked with a NULL vmf, causing a NULL dereference in adjust_pte(). The issue is triggered by how PTE locks are acquired; the fix changes the lock decision to be based on w...

CVE-2025-21934

CVE-2025-21934 : In the Linux kernel, the rapidio Rio driver had an API misusage where rio_add_net() could pathologically free resources when device_register() failed. The patch fixes this by using put_device() instead of kfree() and by nulling mport->net to avoid a use-after-free. Impact is l...

CVE-2025-21934 rapidio: fix an API misues when rio_add_net() fails

In the Linux kernel, the following vulnerability has been resolved: rapidio: fix an API misues when rioaddnet fails rioaddnet calls deviceregister and fails when deviceregister fails. Thus, putdevice should be used rather than kfree. Add "mport-net = NULL;" to avoid a use after free issue...

CVE-2025-21931

CVE-2025-21931 affects the Linux kernel memory hotplug path (hwpoison) and was fixed by ensuring folio lock is held before unmapping hwpoisoned folio. The fix adds the folio lock around unmap calls in do_migrate_range/try_to_unmap to prevent the kernel BUG triggered when folio is not locked. The ...

CVE-2025-21930 wifi: iwlwifi: mvm: don't try to talk to a dead firmware

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: don't try to talk to a dead firmware This fixes: bad state = 0 WARNING: CPU: 10 PID: 702 at drivers/net/wireless/inel/iwlwifi/iwl-trans.c:178 iwltranssendcmd+0xba/0xe0 iwlwifi Call Trace: ? warn+0xca/0x1c0 ?...

CVE-2025-21930 wifi: iwlwifi: mvm: don't try to talk to a dead firmware

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: don't try to talk to a dead firmware This fixes: bad state = 0 WARNING: CPU: 10 PID: 702 at drivers/net/wireless/inel/iwlwifi/iwl-trans.c:178 iwltranssendcmd+0xba/0xe0 iwlwifi Call Trace: ? warn+0xca/0x1c0 ?...

CVE-2025-21927 nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()

In the Linux kernel, the following vulnerability has been resolved: nvme-tcp: fix potential memory corruption in nvmetcprecvpdu nvmetcprecvpdu doesn't check the validity of the header length. When header digests are enabled, a target might send a packet with an invalid header length e.g. 255,...

CVE-2025-21926

CVE-2025-21926 affects the Linux kernel net: gso code path, specifically __udp_gso_segment. The destructor for the skb is removed before segmenting, but the socket reference is left intact. If the original skb is later orphaned, a kernel bug can trigger (skb_orphan crash in ip_rcv_core). The issu...

CVE-2025-21925 llc: do not use skb_get() before dev_queue_xmit()

In the Linux kernel, the following vulnerability has been resolved: llc: do not use skbget before devqueuexmit syzbot is able to crash hosts 1, using llc and devices not supporting IFFTXSKBSHARING. In this case, e1000 driver calls ethskbpad, while the skb is shared. Simply replace skbget by...

CVE-2025-21926 net: gso: fix ownership in __udp_gso_segment

In the Linux kernel, the following vulnerability has been resolved: net: gso: fix ownership in udpgsosegment In udpgsosegment the skb destructor is removed before segmenting the skb but the socket reference is kept as-is. This is an issue if the original skb is later orphaned as we can hit the...

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-2025-21924 net: hns3: make sure ptp clock is unregister and freed if hclge_ptp_get_cycle returns an error

In the Linux kernel, the following vulnerability has been resolved: net: hns3: make sure ptp clock is unregister and freed if hclgeptpgetcycle returns an error During the initialization of ptp, hclgeptpgetcycle might return an error and returned directly without unregister clock and free it. To...

CVE-2025-21921

CVE-2025-21921: In the Linux kernel, net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device, the crash occurs in ethnl_req_get_phydev() when tb is NULL (e.g., ethnl notify path) and a phy_device lookup is performed. The fix passes the cmd index and nlattr array separately to allow NU...