kernel: can: j1939: j1939_session_new(): fix skb reference counting

In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939sessionnew: fix skb reference counting Since j1939sessionskbqueue does an extra skbget for each new skb, do the same for the initial one in j1939sessionnew to avoid refcount underflow. mkl: clean up commit messag...

kernel: smc: Fix use-after-free in tcp_write_timer_handler()

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in tcpwritetimerhandler. With Eric's ref tracker, syzbot finally found a repro for use-after-free in tcpwritetimerhandler by kernel TCP sockets. 0 If SMC creates a kernel socket in smccreate, the kernel...

kernel: nfsd: put dl_stid if fail to queue dl_recall

In the Linux kernel, the following vulnerability has been resolved: nfsd: put dlstid if fail to queue dlrecall Before calling nfsd4runcb to queue dlrecall to the callbackwq, we increment the reference count of dlstid. We expect that after the corresponding workstruct is processed, the reference...

kernel: net: Remove RTNL dance for SIOCBRADDIF and SIOCBRDELIF.

In the Linux kernel, the following vulnerability has been resolved: net: Remove RTNL dance for SIOCBRADDIF and SIOCBRDELIF. SIOCBRDELIF is passed to devioctl first and later forwarded to brioctlcall, which causes unnecessary RTNL dance and the splat below 0 under RTNL pressure. Let's say Thread A...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990583)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990583 advisory. In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: fix reference counting on zcrypt card objects Tests with hot-plugging crytpo cards o...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989870)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989870 advisory. In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939sessionnew: fix skb reference counting Since j1939sessionskbqueue does an extra...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990243)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990243 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix quota root leak after quota disable failure If during the quota disable we fai...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989889)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989889 advisory. In the Linux kernel, the following vulnerability has been resolved: tpm: fix reference counting for struct tpmchip The following sequence of operations results in a...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989578)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989578 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix quota root leak after quota disable failure If during the quota disable we fai...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989006)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989006 advisory. In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix call timer start racing with call destruction The rxrpccall struct has a timer used to...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990266)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990266 advisory. In the Linux kernel, the following vulnerability has been resolved: can: j1939: j1939sessionnew: fix skb reference counting Since j1939sessionskbqueue does an extra...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990366)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990366 advisory. In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: fix reference counting on zcrypt card objects Tests with hot-plugging crytpo cards o...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989833)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989833 advisory. In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: fix reference counting on zcrypt card objects Tests with hot-plugging crytpo cards o...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: drbd: Added krefget to the handlewriteconflicts function. With “two-primaries” enabled, DRBD attempts to detect “concurrent” writes and handle write conflicts. This ensures that even if you write to the same sector simultaneously...

CVE-2025-40096

CVE-2025-40096 is a Linux kernel issue in the drm/sched subsystem. The vulnerability is a potential double free in the path that adds dependencies via drm_sched_job_add_dependency() and drm_sched_job_add_resv_dependencies() , where a fence reference may be released twice on failure. The defect ap...

CVE-2025-40096 drm/sched: Fix potential double free in drm_sched_job_add_resv_dependencies

In the Linux kernel, the following vulnerability has been resolved: drm/sched: Fix potential double free in drmschedjobaddresvdependencies When adding dependencies with drmschedjobadddependency, that function consumes the fence reference both on success and failure, so in the latter case the...

drm/i915: Fix request ref counting during error capture & debugfs dump

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kernel: tls: separate no-async decryption request handling from async

In the Linux kernel, the following vulnerability has been resolved: tls: separate no-async decryption request handling from async If we're not doing async, the handling is much simpler. There's no reference counting, we just need to wait for the completion to wake us up and return its result. We...

CVE-2025-40064

CVE-2025-40064 (kernel): The Linux kernel smc subsystem had a use-after-free in __pnet_find_base_ndev() triggered during connect() via sk_dst_get(dst)->dev. The root cause was not holding the device’s refcount before calling smc_pnet_find_ism_resource() (and smc_pnet_find_roce_resource()). The...

CVE-2025-40024

In the Linux kernel, the following vulnerability has been resolved: vhost: Take a reference on the task in struct vhosttask. vhosttaskcreate creates a task and keeps a reference to its taskstruct. That task may exit early via a signal and its taskstruct will be released. A pending vhosttaskwake...