CVE-2026-64070 powerpc/hv-gpci: fix preempt count leak in sysfs show paths

In the Linux kernel, the following vulnerability has been resolved: powerpc/hv-gpci: fix preempt count leak in sysfs show paths Four sysfs show callbacks in hv-gpci take getcpuvarhvgpcireqb which calls preemptdisable but only call the matching putcpuvar on the error path under the 'out:' label...

CVE-2026-64068 netfs: Fix missing locking around retry adding new subreqs

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix missing locking around retry adding new subreqs Fix netfsretryreadsubrequests and netfsretrywritestream to take the appropriate lock when adding extra subrequests into stream-subrequests...

CVE-2026-64069 netfs: Fix cancellation of a DIO and single read subrequests

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix cancellation of a DIO and single read subrequests When the preparation of a new subrequest for a read fails, if the subrequest has already been added to the stream-subrequests list, it can't simply be put and abandoned...

CVE-2026-64067 netfs: Fix missing barriers when accessing stream->subrequests locklessly

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix missing barriers when accessing stream-subrequests locklessly The list of subrequests attached to stream-subrequests is accessed without locks by netfscollectreadresults and netfscollectwriteresults, and then they acce...

CVE-2026-64066 netfs: Fix netfs_read_to_pagecache() to pause on subreq failure

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfsreadtopagecache to pause on subreq failure Fix netfsreadtopagecache so that it pauses the generation of new subrequests if an already-issued subrequest fails...

CVE-2026-64065 netfs: fix VM_BUG_ON_FOLIO() issue in netfs_write_begin() call

In the Linux kernel, the following vulnerability has been resolved: netfs: fix VMBUGONFOLIO issue in netfswritebegin call The multiple runs of generic/013 test-case is capable to reproduce a kernel BUG at mm/filemap.c:1504 with probability of 30%. while true; do sudo ./check generic/013 done...

CVE-2026-64063 netfs: Fix streaming write being overwritten

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix streaming write being overwritten In order to avoid reading whilst writing, netfslib will allow "streaming writes" in which dirty data is stored directly into folios without reading them first. Such folios are marked...

CVE-2026-64064 netfs: Fix netfs_invalidate_folio() to clear dirty bit if all changes gone

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfsinvalidatefolio to clear dirty bit if all changes gone If a streaming write is made, this will leave the relevant modified folio in a not-uptodate, but dirty state with a netfsfolio struct hung off of folio-privat...

CVE-2026-64062 netfs: Fix potential deadlock in write-through mode

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix potential deadlock in write-through mode Fix netfsadvancewritethrough to always unlock the supplied folio and to mark it dirty if it isn't yet written to the end. Unfortunately, it can't be marked for writeback until t...

CVE-2026-64060 netfs: Fix leak of request in netfs_write_begin() error handling

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix leak of request in netfswritebegin error handling Fix netfswritebegin to not leak our ref on the request in the event that we get an error from netfswaitforread...

CVE-2026-64061 netfs: Fix early put of sink folio in netfs_read_gaps()

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix early put of sink folio in netfsreadgaps Fix netfsreadgaps to release the sink page it uses after waiting for the request to complete. The way the sink page is used is that an ITERBVEC-class iterator is created that ha...

CVE-2026-64059 netfs: Fix folio->private handling in netfs_perform_write()

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix folio-private handling in netfsperformwrite Under some circumstances, netfsperformwrite doesn't correctly manipulate folio-private between NULL, NETFSFOLIOCOPYTOCACHE, pointing to a group and pointing to a netfsfolio...

CVE-2026-64058 netfs: Fix netfs_read_folio() to wait on writeback

In the Linux kernel, the following vulnerability has been resolved: netfs: Fix netfsreadfolio to wait on writeback Fix netfsreadfolio to wait for an ongoing writeback to complete so that it can trust the dirty flag and whatever is attached to folio-private folio-private may get cleaned up by the...

CVE-2026-64057 afs: Fix the locking used by afs_get_link()

In the Linux kernel, the following vulnerability has been resolved: afs: Fix the locking used by afsgetlink The afs filesystem in the kernel doesn't do locking correctly for symbolic links. There are a number of problems: 1 It doesn't do any locking around afsreadsingle to prevent races between...

CVE-2026-64055 net: ethernet: cortina: Carry over frag counter

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Carry over frag counter The gmacrx NAPI poll function assembles packets in an SKB from a ring buffer. If the ring buffer gets completely emptied during a poll cycle, we exit gmacrx, but the packet is not y...

CVE-2026-64056 net: ethernet: cortina: Make RX SKB per-port

In the Linux kernel, the following vulnerability has been resolved: net: ethernet: cortina: Make RX SKB per-port The SKB used to assemble packets from fragments in gmacrx is static local, but the Gemini has two ethernet ports, meaning there can be races between the ports on a bad day if a device ...

CVE-2026-64054 net: shaper: reject duplicate leaves in GROUP request

In the Linux kernel, the following vulnerability has been resolved: net: shaper: reject duplicate leaves in GROUP request netshapernlgroupdoit does not deduplicate NETSHAPERALEAVES entries. When userspace supplies the same leaf handle twice, the same old-parent pointer lands twice in oldnodes. Th...

CVE-2026-64053 block: don't overwrite bip_vcnt in bio_integrity_copy_user()

In the Linux kernel, the following vulnerability has been resolved: block: don't overwrite bipvcnt in biointegritycopyuser biointegrityaddpage already sets bipvcnt to 1 for the bounce segment. Overwriting it with nrvecs breaks bipvcnt = bipmaxvcnt on WRITE bipmaxvcnt is 1, so the gap-merge checks...

CVE-2026-64052 block: bio-integrity: Fix null-ptr-deref in bio_integrity_map_user()

In the Linux kernel, the following vulnerability has been resolved: block: bio-integrity: Fix null-ptr-deref in biointegritymapuser pinuserpagesfast can partially succeed and return the number of pages that were actually pinned. However, the biointegritymapuser does not handle this partial pinnin...

CVE-2026-64051 accel/qaic: Add overflow check to remap_pfn_range during mmap

In the Linux kernel, the following vulnerability has been resolved: accel/qaic: Add overflow check to remappfnrange during mmap The call to remappfnrange in qaicgemobjectmmap is susceptible to remapping beyond the VMA if the BO is too large. This can cause use after free issues when munmap unmaps...

CVE-2026-64049 drm/msm/adreno: fix userspace-triggered crash on a2xx-a4xx

In the Linux kernel, the following vulnerability has been resolved: drm/msm/adreno: fix userspace-triggered crash on a2xx-a4xx Before a5xx Adreno driver will not try fetching UBWC params because those generations didn't support UBWC anyway, however it's still possible to query UBWC-related params...

CVE-2026-64050 drm/msm/dpu: don't mix devm and drmm functions

In the Linux kernel, the following vulnerability has been resolved: drm/msm/dpu: don't mix devm and drmm functions Mixing devm and drmm functions will result in a use-after-free on msm driver teardown if userspace keeps a reference on the drm device: The WB connector data will be destroyed becaus...

CVE-2026-64048 net/smc: reject CHID-0 ACCEPT that matches an empty ism_dev slot

In the Linux kernel, the following vulnerability has been resolved: net/smc: reject CHID-0 ACCEPT that matches an empty ismdev slot On the SMC-D client, slot 0 of ini-ismdev/ini-ismchid is reserved for an SMC-Dv1 device. smcfindismv2deviceclnt populates V2 entries starting at index 1, so when no ...

CVE-2026-64046 net: tls: prevent chain-after-chain in plain text SG

In the Linux kernel, the following vulnerability has been resolved: net: tls: prevent chain-after-chain in plain text SG Sashiko points out that if end = 0 start != 0 the current code will create a chain link to content type right after the wrap link: This would create a chain where the wrap link...

CVE-2026-64047 net: tls: fix off-by-one in sg_chain entry count for wrapped sk_msg ring

In the Linux kernel, the following vulnerability has been resolved: net: tls: fix off-by-one in sgchain entry count for wrapped skmsg ring When an skmsg scatterlist ring wraps sg.end sg.datamsgpl-sg.start, MAXSKBFRAGS - msgpl-sg.start + 1, msgpl-sg.data; This places the chain pointer at...

CVE-2026-64045 ovpn: tcp - use cached peer pointer in ovpn_tcp_close()

In the Linux kernel, the following vulnerability has been resolved: ovpn: tcp - use cached peer pointer in ovpntcpclose ovpntcpclose loads the ovpnsocket via rcudereferenceskuserdata under rcureadlock, takes a reference on sock-peer, caches the peer pointer in a local, and drops the read lock. It...

CVE-2026-64043 ovpn: fix race between deleting interface and adding new peer

In the Linux kernel, the following vulnerability has been resolved: ovpn: fix race between deleting interface and adding new peer While deleting an existing ovpn interface, there is a very narrow window where adding a new peer via netlink may cause the netdevice to hang and prevent its...

CVE-2026-64044 ovpn: respect peer refcount in CMD_NEW_PEER error path

In the Linux kernel, the following vulnerability has been resolved: ovpn: respect peer refcount in CMDNEWPEER error path ovpnnlpeernewdoit's error path calls ovpnpeerrelease directly rather than ovpnpeerput, bypassing the kref. The accompanying comment "peer was not yet hashed, thus it is not use...

CVE-2026-64042 vfio/pci: Check BAR resources before exporting a DMABUF

In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Check BAR resources before exporting a DMABUF A DMABUF exports access to BAR resources and, although they are requested at startup time, we need to ensure they really were reserved before exporting. Otherwise, it's...

CVE-2026-64041 ASoC: codecs: fs210x: fix possible buffer overflow

In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: fs210x: fix possible buffer overflow In fs210xeffectsceneinfo, a string was copied like this: strscpyDST, SRC, strlenSRC + 1; A buffer overflow would happen if strlenSRC = sizeofDST. Actually, strscpy must be used...

CVE-2026-64040 cachefiles: Fix error return when vfs_mkdir() fails

In the Linux kernel, the following vulnerability has been resolved: cachefiles: Fix error return when vfsmkdir fails When vfsmkdir fails, the error code is not extracted from the returned error pointer. This causes mkdirerror to be reached with ret=0, which leads to returning ERRPTR0 NULL instead...

CVE-2026-64039 drm/msm/snapshot: fix dumping of the unaligned regions

In the Linux kernel, the following vulnerability has been resolved: drm/msm/snapshot: fix dumping of the unaligned regions The snapshotting code internally aligns data segment to 16 bytes. This works fine for DPU code where most of the regions are aligned, but fails for snapshotting of the DSI da...

CVE-2026-64038 hwmon: (lm90) Stop work before releasing hwmon device

In the Linux kernel, the following vulnerability has been resolved: hwmon: lm90 Stop work before releasing hwmon device Sashiko reports: In lm90probe, the devm action to cancel the alertwork and reportwork lm90restoreconf is registered in lm90initclient before devmhwmondeviceregisterwithinfo is...

CVE-2026-64037 wifi: iwlwifi: mld: fix TSO segmentation explosion when AMSDU is disabled

In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mld: fix TSO segmentation explosion when AMSDU is disabled When the TLC notification disables AMSDU for a TID, the MLD driver sets maxtidamsdulen to the sentinel value 1. The TSO segmentation path in...

CVE-2026-64035 igc: set tx buffer type for SMD frames

In the Linux kernel, the following vulnerability has been resolved: igc: set tx buffer type for SMD frames Sashiko pointed out that igcfpeinitsmdframe initializes igctxbuffer fields for an SMD skb, but does not set the buffer type:...

CVE-2026-64036 cgroup/rstat: validate cpu before css_rstat_cpu() access

In the Linux kernel, the following vulnerability has been resolved: cgroup/rstat: validate cpu before cssrstatcpu access cssrstatupdated is exposed as a BPF kfunc and accepts a caller-provided cpu argument. The function uses cpu for per-cpu rstat lookups without checking whether it refers to a...

CVE-2026-64034 net: mana: Fix TOCTOU double-fetch of hwc_msg_id from DMA buffer

In the Linux kernel, the following vulnerability has been resolved: net: mana: Fix TOCTOU double-fetch of hwcmsgid from DMA buffer In manahwcrxeventhandler, resp-response.hwcmsgid is read from DMA-coherent memory and bounds-checked, then manahwchandleresp re-reads the same field from the same DMA...

CVE-2026-64033 RDMA/rtrs: Fix use-after-free in path file creation cleanup

In the Linux kernel, the following vulnerability has been resolved: RDMA/rtrs: Fix use-after-free in path file creation cleanup In the error path of rtrssrvcreatepathfiles, the sysfs root folders may already have been created and srvpath-kobj may already have been initialized. If a later step...

CVE-2026-64032 bridge: mcast: Fix a possible use-after-free when removing a bridge port

In the Linux kernel, the following vulnerability has been resolved: bridge: mcast: Fix a possible use-after-free when removing a bridge port When per-VLAN multicast snooping is enabled, the bridge iterates over all the bridge ports, disables the per-port multicast context on each port and enables...

CVE-2026-64031 erofs: fix managed cache race for unaligned extents

In the Linux kernel, the following vulnerability has been resolved: erofs: fix managed cache race for unaligned extents After unaligned compressed extents were introduced, the following race could occur: Thread 1 Thread 2 zerofsfillbiovec ... filemapaddfolio 1 zerofsbindcache...

CVE-2026-64030 wifi: mac80211: bounds-check link_id in ieee80211_ml_epcs

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bounds-check linkid in ieee80211mlepcs IEEE80211MLESTAEPCSCONTROLLINKID is 0x000f, so linkid extracted from a PRIOACCESS ML element PERSTAPROFILE subelement can be 0..15. sdata-link has IEEE80211MLDMAXNUMLINKS 15...

CVE-2026-64029 ALSA: seq: Serialize UMP output teardown with event_input

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Serialize UMP output teardown with eventinput sequmpprocessevent borrows client-outrfile.output without synchronizing with the first-open and last-close transition in sequmpclientopen and sequmpclientclose. The last...

CVE-2026-64028 tracing: Avoid NULL return from hist_field_name() on truncation

In the Linux kernel, the following vulnerability has been resolved: tracing: Avoid NULL return from histfieldname on truncation histfieldname returns "" everywhere except the fully-qualified VARREF/EXPR case, where snprintf truncation returns NULL early and bypasses the bottom NULL-"" guard...

CVE-2026-64027 net: shaper: rework the VALID marking (again)

In the Linux kernel, the following vulnerability has been resolved: net: shaper: rework the VALID marking again Recent commit changed the semantics from NOTVALID to VALID. I didn't realize that the flags are not stored atomically with the entry in XArray. There's still a race of reader observing ...

CVE-2026-64025 bpf, skmsg: fix verdict sk_data_ready racing with ktls rx

In the Linux kernel, the following vulnerability has been resolved: bpf, skmsg: fix verdict skdataready racing with ktls rx skpsockstrpdataready already checks tlsswhasctxrx and defers to psock-saveddataready when a TLS RX context is present, avoiding a conflict with the TLS strparser's ownership...

CVE-2026-64026 rxrpc: Fix DATA decrypt vs splice() by copying data to buffer in recvmsg

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix DATA decrypt vs splice by copying data to buffer in recvmsg This improves the fix for CVE-2026-43500. Fix the pagecache corruption from in-place decryption of a DATA packet transmitted locally by splice by getting rid ...

CVE-2026-64024 tcp: fix stale per-CPU tcp_tw_isn leak enabling ISN prediction

In the Linux kernel, the following vulnerability has been resolved: tcp: fix stale per-CPU tcptwisn leak enabling ISN prediction Blamed commit moved the TIMEWAIT-derived ISN from the skb control block to a per-CPU variable, assuming the value would always be consumed by tcpconnrequest for the sam...

CVE-2026-64022 gpio: aggregator: remove the software node when deactivating the aggregator

In the Linux kernel, the following vulnerability has been resolved: gpio: aggregator: remove the software node when deactivating the aggregator The dynamic software node we create for the aggregator platform device when using configfs is leaked when the device is deactivated. Destroy it as the la...

CVE-2026-64023 gpio: aggregator: fix a potential use-after-free

In the Linux kernel, the following vulnerability has been resolved: gpio: aggregator: fix a potential use-after-free On error we free aggr-lookups-devid before removing the entry from the lookup table. If a concurrent thread calls gpiodfind before we remove the entry, it could iterate over the li...

CVE-2026-64020 nvme-pci: fix dma_vecs leak on p2p memory

In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix dmavecs leak on p2p memory We don't unmap P2P memory, so we don't need to track it. The dmavec allocation was getting leaked on the completion...