Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the preexit callback in the wireguard device obtaining the rtnllock manually, potentially causing...

CVE-2026-31454

In the Linux kernel, the following vulnerability has been resolved: xfs: save ailp before dropping the AIL lock in push callbacks In xfsinodeitempush and xfsqmdquotlogitempush, the AIL lock is dropped to perform buffer IO. Once the cluster buffer no longer protects the log item from reclaim, the...

UBUNTU-CVE-2026-31443

In the Linux kernel, the following vulnerability has been resolved: dmaengine: idxd: Fix crash when the event log is disabled If reporting errors to the event log is not supported by the hardware, and an error that causes Function Level Reset FLR is received, the driver will try to restore the...

UBUNTU-CVE-2026-31515

In the Linux kernel, the following vulnerability has been resolved: afkey: validate families in pfkeysendmigrate syzbot was able to trigger a crash in skbput 1 Issue is that pfkeysendmigrate does not check old/new families, and that setipsecrequest @family argument was truncated, thus possibly...

UBUNTU-CVE-2026-31518

In the Linux kernel, the following vulnerability has been resolved: esp: fix skb leak with espintcp and async crypto When the TX queue for espintcp is full, espoutputtailtcp will return an error and not free the skb, because with synchronous crypto, the common xfrm output code will drop the packe...

CVE-2026-31524

In the Linux kernel, the following vulnerability has been resolved: HID: asus: avoid memory leak in asusreportfixup The asusreportfixup function was returning a newly allocated kmemdup-allocated buffer, but never freeing it. Switch to devmkzalloc to ensure the memory is managed and freed...

CVE-2026-31504

In the Linux kernel, the following vulnerability has been resolved: net: fix fanout UAF in packetrelease via NETDEVUP race packetrelease has a race window where NETDEVUP can re-register a socket into a fanout group's arr array. The re-registration is not cleaned up by fanoutrelease, leaving a...

CVE-2026-31496

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfconntrackexpect: skip expectations in other netns via proc Skip expectations that do not reside in this netns. Similar to e77e6ff502ea "netfilter: conntrack: do not dump other netns's conntrack entries via proc"...

UBUNTU-CVE-2026-31528

In the Linux kernel, the following vulnerability has been resolved: perf: Make sure to use pmuctx-pmu for groups Oliver reported that x86pmudel ended up doing an out-of-bound memory access when groupschedin fails and needs to roll back. This should be handled by the transaction callbacks, but he...

UBUNTU-CVE-2026-31495

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: use netlink policy range checks Replace manual range and mask validations with netlink policy annotations in ctnetlink code paths, so that the netlink core rejects invalid values early and can generate extac...

UBUNTU-CVE-2026-31470

In the Linux kernel, the following vulnerability has been resolved: virt: tdx-guest: Fix handling of host controlled 'quote' buffer length Validate host controlled value quotebuf-outlen that determines how many bytes of the quote are copied out to guest userspace. In TDX environments with remote...

UBUNTU-CVE-2026-31478

In the Linux kernel, the following vulnerability has been resolved: ksmbd: replace hardcoded hdr2len with offsetof in smb2calcmaxoutbuflen After this commit e2b76ab8b5c9 "ksmbd: add support for read compound", response buffer management was changed to use dynamic iov array. In the new design,...

CVE-2026-31489

In the Linux kernel, the following vulnerability has been resolved: spi: meson-spicc: Fix double-put in remove path mesonspiccprobe registers the controller with devmspiregistercontroller, so teardown already drops the controller reference via devm cleanup. Calling spicontrollerput again in...

CVE-2026-31472

CVE-2026-31472 concerns the Linux kernel, specifically the xfrm/ IPTFS path. A crafted ESP packet with an inner IPv4 header can cause an infinite loop in __input_process_payload() if the inner header has tot_len=0 or malformed ihl. The fix adds validation to reject inner packets where tot_len &lt...

CVE-2026-31467

In the Linux kernel, the following vulnerability has been resolved: erofs: add GFPNOIO in the bio completion if needed The bio completion path in the process context e.g. dm-verity will directly call into decompression rather than trigger another workqueue context for minimal scheduling latencies...

CVE-2026-31458 mm/damon/sysfs: check contexts->nr before accessing contexts_arr[0]

In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: check contexts-nr before accessing contextsarr0 Multiple sysfs command paths dereference contextsarr0 without first verifying that kdamond-contexts-nr == 1. A user can set nrcontexts to 0 via sysfs while DAMON is...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013414)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013414 advisory. A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is an unknown function of the file mm/memory.c of the component Driver...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013424)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013424 advisory. The ksmbd server through 3.4.2, as used in the Linux kernel through 5.15.8, sometimes communicates in cleartext even though encryption has been enabled. This occurs...

Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013821)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-013821 advisory. In the Linux kernel, the following vulnerability has been resolved: ALSA: hda/ca0132: fixup buffer overrun at tuningctlset tuningctlset might have buffer overrun at...

Linux kernel 安全漏洞

The Linux kernel is the core of the open-source operating system Linux, developed by the Linux Foundation in the United States. There is a security vulnerability in the Linux kernel, which stems from the premature release of the CPPI descriptor in the RX path within the icssg-prueth driver. This...