CVE-2026-53171 accel/ethosu: fix arithmetic issues in dma_length()

In the Linux kernel, the following vulnerability has been resolved: accel/ethosu: fix arithmetic issues in dmalength dmalength derives DMA region usage from command stream values and updates regionsize: len = len + stride0 size0 + stride1 size1 regionsizeregion = max..., len + dma-offset Several...

CVE-2026-53170 accel/ethosu: reject DMA commands with uninitialized length

In the Linux kernel, the following vulnerability has been resolved: accel/ethosu: reject DMA commands with uninitialized length cmdstateinit initializes the command state with memset0xff, leaving dma-len at U64MAX to signal missing setup. The only setter is NPUSETDMA0LEN; if userspace omits this...

CVE-2026-53169 accel/ethosu: reject NPU_OP_RESIZE commands from userspace

In the Linux kernel, the following vulnerability has been resolved: accel/ethosu: reject NPUOPRESIZE commands from userspace NPUOPRESIZE is a U85-only command that the driver does not yet implement. The existing WARNON1 placeholder fires unconditionally whenever userspace submits this command via...

CVE-2026-53168 fuse: reject fuse_notify() pagecache ops on directories

In the Linux kernel, the following vulnerability has been resolved: fuse: reject fusenotify pagecache ops on directories The operations FUSENOTIFYSTORE and FUSENOTIFYRETRIEVE allow the FUSE daemon to actively write/read pagecache contents. For directories with FOPENCACHEDIR, the pagecache is used...

CVE-2026-53166 futex/requeue: Prevent NULL pointer dereference in remove_waiter() on self-deadlock

In the Linux kernel, the following vulnerability has been resolved: futex/requeue: Prevent NULL pointer dereference in removewaiter on self-deadlock When FUTEXCMPREQUEUEPI requeues a non-top waiter that already owns the target PI futex, taskblocksonrtmutex returns -EDEADLK before setting...

CVE-2026-53167 fuse: limit FUSE_NOTIFY_RETRIEVE to uptodate folios

In the Linux kernel, the following vulnerability has been resolved: fuse: limit FUSENOTIFYRETRIEVE to uptodate folios FUSENOTIFYRETRIEVE must be limited to uptodate folios; !uptodate folios can contain uninitialized data. Since FUSENOTIFYRETRIEVE is intended to only return data that is already in...

CVE-2026-53165 iomap: avoid potential null folio->mapping deref during error reporting

In the Linux kernel, the following vulnerability has been resolved: iomap: avoid potential null folio-mapping deref during error reporting When a buffered read fails, iomapfinishfolioread reports the error with fserrorreportiofolio-mapping-host, .... This is called after ifs-readbytespending has...

CVE-2026-53164 iommu/dma: Do not try to iommu_map a 0 length region in swiotlb

In the Linux kernel, the following vulnerability has been resolved: iommu/dma: Do not try to iommumap a 0 length region in swiotlb iommudmaiovalinkswiotlb processes a mapping that is unaligned in three parts, the head, middle and trailer. If the middle is empty because there are no aligned pages ...

CVE-2026-53163 locking/rtmutex: Skip remove_waiter() when waiter is not enqueued

In the Linux kernel, the following vulnerability has been resolved: locking/rtmutex: Skip removewaiter when waiter is not enqueued syzbot triggered the following splat in removewaiter via FUTEXCMPREQUEUEPI: KASAN: null-ptr-deref in range 0x0000000000000a88-0x0000000000000a8f...

CVE-2026-53162 memcg: use round-robin victim selection in refill_stock

In the Linux kernel, the following vulnerability has been resolved: memcg: use round-robin victim selection in refillstock Harry Yoo reported that getrandomu32below is not safe to call in the nmi context and memcg charge draining can happen in nmi context. More specifically getrandomu32below is...

CVE-2026-53161 misc: fastrpc: fix use-after-free of fastrpc_user in workqueue context

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix use-after-free of fastrpcuser in workqueue context There is a race between fastrpcdevicerelease and the workqueue that processes DSP responses. When the user closes the file descriptor, fastrpcdevicerelease fre...

CVE-2026-53160 misc: fastrpc: fix use-after-free race in fastrpc_map_create

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix use-after-free race in fastrpcmapcreate fastrpcmaplookup returns a raw pointer after releasing fl-lock. The caller fastrpcmapcreate then calls fastrpcmapget krefgetunlesszero on this unprotected pointer. A...

CVE-2026-53159 misc: fastrpc: fix DMA address corruption due to find_vma misuse

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix DMA address corruption due to findvma misuse fastrpcgetargs uses findvma to look up the VMA for a user-provided pointer and compute a DMA address offset. When the address falls in a gap before the returned VMA,...

CVE-2026-53157 net: phonet: free phonet_device after RCU grace period

In the Linux kernel, the following vulnerability has been resolved: net: phonet: free phonetdevice after RCU grace period phonetdevicedestroy removes a phonetdevice from the per-net device list with listdelrcu, but frees it immediately. RCU readers walking the same list can still hold a pointer t...

CVE-2026-53158 misc: fastrpc: Fix NULL pointer dereference in rpmsg callback

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix NULL pointer dereference in rpmsg callback A NULL pointer dereference was observed on Hawi at boot when the DSP sends a glink message before fastrpcrpmsgprobe has completed initialization: Unable to handle kern...

CVE-2026-53156 nvmem: core: fix use-after-free bugs in error paths

In the Linux kernel, the following vulnerability has been resolved: nvmem: core: fix use-after-free bugs in error paths Fix several instances of error paths in which we call nvmemdeviceput - which may end up freeing the underlying memory and other resources - and then keep on using the nvmem...

CVE-2026-53155 mm/huge_memory: use correct flags for device private PMD entry

In the Linux kernel, the following vulnerability has been resolved: mm/hugememory: use correct flags for device private PMD entry Commit 65edfda6f3f2 "mm/rmap: extend rmap and migration support device-private entries" updated setpmdmigrationentry to use pmdphugegetandclear in the softleaf case, b...

CVE-2026-53154 mm/hugetlb: restore reservation on error in hugetlb folio copy paths

In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: restore reservation on error in hugetlb folio copy paths Two sites in mm/hugetlb.c allocate a hugetlb folio via allochugetlbfolio consuming a VMA reservation and then call copyuserlargefolio, which became int-returnin...

CVE-2026-53153 mm/list_lru: drain before clearing xarray entry on reparent

In the Linux kernel, the following vulnerability has been resolved: mm/listlru: drain before clearing xarray entry on reparent memcgreparentlistlrus clears the dying memcg's xarray entry with xasstore&xas, NULL before reparenting its per-node lists into the parent. This opens a window where a...

CVE-2026-53151 rxrpc: Fix the ACK parser to extract the SACK table for parsing

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix the ACK parser to extract the SACK table for parsing Fix modification of the received skbuff in rxrpcinputsoftacks and a potential incorrect access of the buffer in a fragmented UDP packet the packet would probably hav...