dhcp: option refcount overflow when leasequery is enabled leading to dhcpd abort

An integer overflow vulnerability was found in the DHCP server. When the "optioncodehashlookup" function is called from "addoption", it increases the option's "refcount" field. However, there is not a corresponding call to "optiondereference" to decrement the "refcount" field. The "addoption"...

CentOS 8 : wayland (CESA-2023:2786)

The remote CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CESA-2023:2786 advisory. - An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The reference count is maintained as an...

RHEL 8 : wayland (RHSA-2023:2786)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2023:2786 advisory. Wayland is a protocol for a compositor to talk to its clients, as well as a C library implementation of that protocol. The compositor can be a...

kernel: bpf: prevent leak of lsm program after failed attach

A reference count leak was found in the BPF subsystem. When attaching a BPF LSM program to a cgroup fails validation, the program's reference count is not decremented, causing the BPF program to remain loaded indefinitely...

kernel: jbd2: fix potential buffer head reference count leak

A buffer head reference count leak was found in the JBD2 journaling layer used by ext4. When jbd2fcwaitbufs encounters a non-uptodate buffer and returns -EIO, the journal offset is not updated, causing subsequent buffer release to skip some buffer heads...

kernel: perf/x86/intel/uncore: Fix reference count leak in snr_uncore_mmio_map()

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Fix reference count leak in snruncoremmiomap pcigetdevice will increase the reference count for the returned pcidev, so snruncoregetmcdev will return a pcidev with its reference count increased. We need to...

kernel: net/sunrpc: fix potential memory leaks in rpc_sysfs_xprt_state_change()

A flaw was found in the sunrpc module in the Linux kernel. A missing decrement of the reference count when an error occurs can cause a memory leak, and a missing check can cause a NULL pointer dereference, potentially resulting in a denial of service...

kernel: usb: host: ohci-ppc-of: Fix refcount leak bug

In the Linux kernel, the following vulnerability has been resolved: usb: host: ohci-ppc-of: Fix refcount leak bug In ohcihcdppcofprobe, offindcompatiblenode will return a node pointer with refcount incremented. We should use ofnodeput when it is not used anymore...

kernel: xfrm: fix refcount leak in __xfrm_policy_check()

A flaw was found in the XFRM subsystem in the Linux kernel. A missing decrement of the reference count when an error occurs will cause a memory leak, potentially impacting system performance and resulting in a denial of service...

kernel: ext4: fix deadlock due to mbcache entry corruption

A deadlock vulnerability was found in the ext4 filesystem in the Linux kernel. When manipulating extended attribute xattr blocks, a race condition in non-atomic bitfield updates can cause the mbcache entry state to become corrupted. This leads to an infinite loop in ext4xattrblockset where the co...

kernel: perf/x86/intel/uncore: Fix reference count leak in hswep_has_limit_sbox()

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Fix reference count leak in hswephaslimitsbox pcigetdevice will increase the reference count for the returned 'dev'. We need to call pcidevput to decrease the reference count. Since 'dev' is only used in...

kernel: ASoC: mediatek: mt8173: Fix refcount leak in mt8173_rt5650_rt5676_dev_probe

A flaw was found in the mt8173-rt5650-rt5676 module in the Linux kernel. A missing decrement of the reference count when an error occurs will cause a memory leak, potentially impacting system performance and resulting in a denial of service...

kernel: usb: renesas: Fix refcount leak bug

In the Linux kernel, the following vulnerability has been resolved: usb: renesas: Fix refcount leak bug In usbhsrza1hardwareinit, offindnodebyname will return a node pointer with refcount incremented. We should use ofnodeput when it is not used anymore...

kernel: mm/mempolicy: fix mpol_new leak in shared_policy_replace

In the Linux kernel, the following vulnerability has been resolved: mm/mempolicy: fix mpolnew leak in sharedpolicyreplace If mpolnew is allocated but not used in restart loop, mpolnew will be freed via mpolput before returning to the caller. But refcnt is not initialized yet, so mpolput could not...

kernel: NFSD: fix leaked reference count of nfsd4_ssc_umount_item

In the Linux kernel, the following vulnerability has been resolved: NFSD: fix leaked reference count of nfsd4sscumountitem The reference count of nfsd4sscumountitem is not decremented on error conditions. This prevents the laundromat from unmounting the vfsmount of the source file. This patch...

kernel: xfrm_expand_policies() in net/xfrm/xfrm_policy.c can cause a refcount to be dropped twice

A flaw was found in the Linux kernel’s IP framework for transforming packets XFRM subsystem. An error while resolving policies in xfrmbundlelookup causes the refcount to drop twice, leading to a possible crash and a denial of service...

dhcp: option refcount overflow when leasequery is enabled leading to dhcpd abort

An integer overflow vulnerability was found in the DHCP server. When the "optioncodehashlookup" function is called from "addoption", it increases the option's "refcount" field. However, there is not a corresponding call to "optiondereference" to decrement the "refcount" field. The "addoption"...

EulerOS Virtualization 3.0.2.0 : wayland (EulerOS-SA-2023-1710)

According to the versions of the wayland packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : - An internal reference count is held on the buffer pool, incremented every time a new buffer is created from the pool. The...

A flaw was found in the Linux kernel's netdevsim device driver within the scheduling of events. This issue results from the improper management of a reference count. This may allow an attacker to create a denial of service condition on the system.

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AZL-26378 CVE-2023-2019 affecting package kernel for versions less than 5.15.111.1-1

A flaw was found in the Linux kernel's netdevsim device driver, within the scheduling of events. This issue results from the improper management of a reference count. This may allow an attacker to create a denial of service condition on the system...