kernel: iscsi_ibft: Fix UBSAN shift-out-of-bounds warning in ibft_attr_show_nic()

In the Linux kernel, the following vulnerability has been resolved: iscsiibft: Fix UBSAN shift-out-of-bounds warning in ibftattrshownic When performing an iSCSI boot using IPv6, iscsistart still reads the /sys/firmware/ibft/ethernetX/subnet-mask entry. Since the IPv6 prefix length is 64, this...

kernel: netfilter: ipset: add missing range check in bitmap_ip_uadt

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: add missing range check in bitmapipuadt When tbIPSETATTRIPTO is not present but tbIPSETATTRCIDR exists, the values of ip and ipto are slightly swapped. Therefore, the range check for ip should be done later, but...

kernel: netfilter: ipset: add missing range check in bitmap_ip_uadt

In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: add missing range check in bitmapipuadt When tbIPSETATTRIPTO is not present but tbIPSETATTRCIDR exists, the values of ip and ipto are slightly swapped. Therefore, the range check for ip should be done later, but...

kernel: nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()

An unchecked buffer bounds flaw was found in the Linux kernel's NVMe TCP Fabrics driver. An attacker with the ability to send a crafted packet to an affected NVMe host could exploit this flaw to alter kernel memory, leading to an escalation of privileges or a compromise of system integrity or...

kernel: nvme-tcp: fix potential memory corruption in nvme_tcp_recv_pdu()

An unchecked buffer bounds flaw was found in the Linux kernel's NVMe TCP Fabrics driver. An attacker with the ability to send a crafted packet to an affected NVMe host could exploit this flaw to alter kernel memory, leading to an escalation of privileges or a compromise of system integrity or...

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

A flaw was found in the Linux kernel's wifi: cfg80211 subsystem. A local attacker with administrative privileges could exploit this vulnerability. When a wireless device wdev/netdev is unregistered, its cqmconfig pointer is freed but not cleared. If the same device is re-registered in another...

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

A flaw was found in the Linux kernel's networking component. When a network socket fails to be created, a reference to a previously freed memory location, known as a "dangling pointer," is not properly cleared. This oversight could allow a local attacker with low privileges to cause the system to...

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: vsock: prevent null-ptr-deref in vsock_*[has_data|has_space]

In the Linux kernel, the following vulnerability has been resolved: vsock: prevent null-ptr-deref in vsockhasdata|hasspace Recent reports have shown how we sometimes call vsockhasdata when a vsock socket has been de-assigned from a transport see attached links, but we shouldn't. Previous commits...

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

A flaw was found in the Linux kernel's network handling, specifically within the qdiscpktleninit function. A local user could exploit this by crafting a malicious Generic Segmentation Offload GSO packet. Insufficient sanity checks in the virtionethdrtoskb function allow for an underflow in the...

kernel: block: fix integer overflow in BLKSECDISCARD

A flaw was found in the Linux kernel's block subsystem. A local attacker with sufficient privileges could exploit an integer overflow vulnerability in the BLKSECDISCARD ioctl. This could lead to a near infinite loop within the blkdevissuesecureerase function, resulting in a Denial of Service DoS...

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

A flaw was found in the Linux kernel's thermal core component. A local attacker could exploit a use-after-free vulnerability, where a memory object is accessed after it has been released. This improper handling of the thermal zone object during unregistration can lead to a system crash, resulting...

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: 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...