kernel: wifi: cfg80211: clear wdev->cqm_config pointer on free

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: clear wdev-cqmconfig pointer on free When we free wdev-cqmconfig when unregistering, we also need to clear out the pointer since the same wdev/netdev may get re-registered in another network namespace, then...

kernel: resource: fix region_intersects() vs add_memory_driver_managed()

In the Linux kernel, the following vulnerability has been resolved: resource: fix regionintersects vs addmemorydrivermanaged On a system with CXL memory, the resource tree /proc/iomem related to CXL memory may look like something as follows. 490000000-50fffffff : CXL Window 0 490000000-50fffffff ...

kernel: net: stmmac: dwmac-tegra: Read iommu stream id from device tree

In the Linux kernel, the following vulnerability has been resolved: net: stmmac: dwmac-tegra: Read iommu stream id from device tree Nvidia's Tegra MGBE controllers require the IOMMU "Stream ID" SID to be written to the MGBEWRAPAXIASID0CTRL register. The current driver is hard coded to use MGBE0's...

kernel: hwmon: (w83627ehf) Fix underflows seen when writing limit attributes

This CVE has been marked as Rejected by the assigning CNA...

kernel: arm64: mm: fix VA-range sanity check

A logic flaw was found in the Linux kernel's arm64 memory management subsystem. The virtual address range sanity check in createmappingnoalloc and updatemappingprot uses an incorrect condition that only excludes the KASAN shadow region and module region, rather than properly validating addresses...

kernel: media: v4l2-mem2mem: add lock to protect parameter num_rdy

In the Linux kernel, the following vulnerability has been resolved: media: v4l2-mem2mem: add lock to protect parameter numrdy Getting below error when using KCSAN to check the driver. Adding lock to protect parameter numrdy when getting the value with function:...

kernel: block: fix integer overflow in BLKSECDISCARD

In the Linux kernel, the following vulnerability has been resolved: block: fix integer overflow in BLKSECDISCARD I independently rediscovered commit 22d24a544b0d49bbcbd61c8c0eaf77d3c9297155 block: fix overflow in blkioctldiscard but for secure erase. Same problem: uint64t r2 = 512,...

kernel: selinux: ignore unknown extended permissions

In the Linux kernel, the following vulnerability has been resolved: selinux: ignore unknown extended permissions When evaluating extended permissions, ignore unknown permissions instead of calling BUG. This commit ensures that future permissions can be added without interfering with older kernels...

kernel: mm: resolve faulty mmap_region() error path behaviour

In the Linux kernel, the following vulnerability has been resolved: mm: resolve faulty mmapregion error path behaviour The mmapregion function is somewhat terrifying, with spaghetti-like control flow and numerous means by which issues can arise and incomplete state, memory leaks and other...

kernel: bpf: Remove tst_run from lwt_seg6local_prog_ops.

In the Linux kernel, the following vulnerability has been resolved: bpf: Remove tstrun from lwtseg6localprogops. The syzbot reported that the lwtseg6 related BPF ops can be invoked via bpftestrun without without entering inputactionendbpf first. Martin KaFai Lau said that self test for...

kernel: bpf: devmap: provide rxq after redirect

In the Linux kernel, the following vulnerability has been resolved: bpf: devmap: provide rxq after redirect rxq contains a pointer to the device from where the redirect happened. Currently, the BPF program that was executed after a redirect via BPFMAPTYPEDEVMAP does not have it set. This is...

kernel: PCI/DPC: Fix use-after-free on concurrent DPC and hot-removal

A use-after-free flaw was found in concurrent DPC and hot-removal in the Linux kernel. This issue may result in a crash...

kernel: nfsd: fix nfs4_openowner leak when concurrent nfsd4_open occur

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix nfs4openowner leak when concurrent nfsd4open occur The action force umountumount -f will attempt to kill all rpctask even umount operation may ultimately fail if some files remain open. Consequently, if an action attemp...

kernel: xfs: fix finding a last resort AG in xfs_filestream_pick_ag

In the Linux kernel, the following vulnerability has been resolved: xfs: fix finding a last resort AG in xfsfilestreampickag When the main loop in xfsfilestreampickag fails to find a suitable AG it tries to just pick the online AG. But the loop for that uses args-pag as loop iterator while the...

kernel: bpf: Make sure internal and UAPI bpf_redirect flags don't overlap

In the Linux kernel, the following vulnerability has been resolved: bpf: Make sure internal and UAPI bpfredirect flags don't overlap The bpfredirectinfo is shared between the SKB and XDP redirect paths, and the two paths use the same numeric flag values in the ri-flags field specifically,...

kernel: sunrpc: clear XPRT_SOCK_UPD_TIMEOUT when reset transport

In the Linux kernel, the following vulnerability has been resolved: sunrpc: clear XPRTSOCKUPDTIMEOUT when reset transport Since transport-sock has been set to NULL during reset transport, XPRTSOCKUPDTIMEOUT also needs to be cleared. Otherwise, the xstcpsetsockettimeouts may be triggered in...

kernel: net: add more sanity checks to qdisc_pkt_len_init()

In the Linux kernel, the following vulnerability has been resolved: net: add more sanity checks to qdiscpktleninit One path takes care of SKBGSODODGY, assuming skb-len is bigger than hdrlen. virtionethdrtoskb does not fully dissect TCP headers, it only make sure it is at least 20 bytes. It is...

kernel: thermal: core: Free tzp copy along with the thermal zone

In the Linux kernel, the following vulnerability has been resolved: thermal: core: Free tzp copy along with the thermal zone The object pointed to by tz-tzp may still be accessed after being freed in thermalzonedeviceunregister, so move the freeing of it to the point after the removal completion...

kernel: net: flow_dissector: use DEBUG_NET_WARN_ON_ONCE

In the Linux kernel, the following vulnerability has been resolved: net: flowdissector: use DEBUGNETWARNONONCE The following splat is easy to reproduce upstream as well as in -stable kernels. Florian Westphal provided the following commit: d1dab4f71d37 "net: add and use skbgethashsymmetricnet" bu...

kernel: net: explicitly clear the sk pointer, when pf->create fails

In the Linux kernel, the following vulnerability has been resolved: net: explicitly clear the sk pointer, when pf-create fails We have recently noticed the exact same KASAN splat as in commit 6cd4a78d962b "net: do not leave a dangling sk pointer, when socket creation fails". The problem is that...