CVE-2021-47118 pid: take a reference when initializing `cad_pid`

In the Linux kernel, the following vulnerability has been resolved: pid: take a reference when initializing cadpid During boot, kernelinitfreeable initializes cadpid to the init task's struct pid. Later on, we may change cadpid via a sysctl, and when this happens procdocadpid will increment the...

CVE-2021-47118

CVE-2021-47118: In the Linux kernel, cad_pid is initialized without taking a reference to the init task’s pid. When cad_pid is later updated via sysctl, the old pid may be put without a corresponding get, risking a use-after-free of the init task’s struct pid. The connected MiracleLinux advisory ...

Linux kernel security vulnerabilities

Linux kernel is the kernel used by the Linux Foundation's open source operating system Linux. A security vulnerability exists in the Linux kernel due to a reference counting error in the pid module...

Updated screen packages fix security vulnerability

The updated package fixes a security vulnerability: socket.c in GNU Screen through 4.9.0, when installed setuid or setgid the default on platforms such as Arch Linux and FreeBSD, allows local users to send a privileged SIGHUP signal to any PID, causing a denial of service or disruption of the...

CVE-2024-26615

In the Linux kernel, the following vulnerability has been resolved: net/smc: fix illegal rmbdesc access in SMC-D connection dump A crash was found when dumping SMC-D connections. It can be reproduced by following steps: - run nginx/wrk test: smcrun nginx smcrun wrk -t 16 -c 1000 -d -H 'Connection...

Spoofing

In the Linux kernel, the following vulnerability has been resolved: tcp: make sure init the acceptqueue's spinlocks once When I run syz's reproduction C program locally, it causes the following issue: pvqspinlock: lock 0xffff9d181cd5c660 has corrupted value 0x0! WARNING: CPU: 19 PID: 21160 at...

BIT-WILDFLY-2020-14317

It was found that the issue for security flaw CVE-2019-3805 appeared again in a further version of JBoss Enterprise Application Platform - Continuous Delivery EAP-CD introducing regression. An attacker could exploit this by modifying the PID file in /var/run/jboss-eap/ allowing the init.d script ...

CVE-2024-26626 ipmr: fix kernel panic when forwarding mcast packets

In the Linux kernel, the following vulnerability has been resolved: ipmr: fix kernel panic when forwarding mcast packets The stacktrace was: 86.305548 BUG: kernel NULL pointer dereference, address: 0000000000000092 86.306815 PF: supervisor read access in kernel mode 86.307717 PF: errorcode0x0000 ...

CVE-2023-52578

In the Linux kernel, the following vulnerability has been resolved: net: bridge: use DEVSTATSINC syzbot/KCSAN reported data-races in brhandleframefinish 1 This function can run from multiple cpus without mutual exclusion. Adopt SMP safe DEVSTATSINC to update dev-stats fields. Handles updates to...

CVE-2021-47092

In the Linux kernel, the following vulnerability has been resolved: KVM: VMX: Always clear vmx-fail on emulationrequired Revert a relatively recent change that set vmx-fail if the vCPU is in L2 and emulationrequired is true, as that behavior is completely bogus. Setting vmx-fail and synthesizing ...

CVE-2021-47090 mm/hwpoison: clear MF_COUNT_INCREASED before retrying get_any_page()

In the Linux kernel, the following vulnerability has been resolved: mm/hwpoison: clear MFCOUNTINCREASED before retrying getanypage Hulk Robot reported a panic in putpagetestzero when testing madvise with MADVSOFTOFFLINE. The BUG is triggered when retrying getanypage. This is because we keep...

CVE-2021-47082 tun: avoid double free in tun_free_netdev

In the Linux kernel, the following vulnerability has been resolved: tun: avoid double free in tunfreenetdev Avoid double free in tunfreenetdev by moving the dev-tstats and tun-security allocs to a new ndoinit routine tunnetinit that will be called by registernetdevice. ndoinit is paired with the...

CVE-2021-47080

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Prevent divide-by-zero error triggered by the user The userentrysize is supplied by the user and later used as a denominator to calculate number of entries. The zero supplied by the user will trigger the following...

CVE-2023-52528

In the Linux kernel, the following vulnerability has been resolved: net: usb: smsc75xx: Fix uninit-value access in smsc75xxreadreg syzbot reported the following uninit-value access issue: ===================================================== BUG: KMSAN: uninit-value in smsc75xxwaitready...

CVE-2021-47078

In the Linux kernel, the following vulnerability has been resolved: RDMA/rxe: Clear all QP fields if creation failed rxeqpdocleanup relies on valid pointer values in QP for the properly created ones, but in case rxeqpfrominit failed it was filled with garbage and caused tot the following error...

CVE-2021-47025

In the Linux kernel, the following vulnerability has been resolved: iommu/mediatek: Always enable the clk on resume In mtkiommuruntimeresume always enable the clk, even if m4udom is null. Otherwise the 'suspend' cb might disable the clk which is already disabled causing the warning: 1.586104...

CVE-2021-46997

In the Linux kernel, the following vulnerability has been resolved: arm64: entry: always set GICPRIOPSRISET during entry Zenghui reports that booting a kernel with "irqchip.gicv3pseudonmi=1" on the command line hits a warning during kernel entry, due to the way we manipulate the PMR. Early in the...

CVE-2021-46976

In the Linux kernel, the following vulnerability has been resolved: drm/i915: Fix crash in autoretire The retire logic uses the 2 lower bits of the pointer to the retire function to store flags. However, the autoretire function is not guaranteed to be aligned to a multiple of 4, which causes...

Null pointer dereference

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix NULL pointer in flushworkqueue Open /dev/nbdX first, the configrefs will be 1 and the pointers in nbddevice are still null. Disconnect /dev/nbdX, then reference a null recvworkq. The protection by configrefs in...

CVE-2021-47025 iommu/mediatek: Always enable the clk on resume

In the Linux kernel, the following vulnerability has been resolved: iommu/mediatek: Always enable the clk on resume In mtkiommuruntimeresume always enable the clk, even if m4udom is null. Otherwise the 'suspend' cb might disable the clk which is already disabled causing the warning: 1.586104...