Linux kernel vulnerabilities
We track 12 vulnerabilities in Linux kernel products across 2 products. 12 are rated high or critical, and 2 have been exploited in real attacks. The most recent was published on March 29, 2023.
Latest Linux kernel vulnerabilities
- 7.1 High severity
Linux Kernel: Use After Free
A use-after-free flaw was found in nfsd4_ssc_setup_dul in fs/nfsd/nfs4proc.c in the NFS filesystem in the Linux Kernel. This issue could allow a local attacker to crash the system or it may lead to a kernel information leak problem.
- 7.8 High severity
Linux kernel: Access of Resource Using Incompatible Type
A flaw was found in the Linux Kernel in RDS (Reliable Datagram Sockets) protocol. The rds_rm_zerocopy_callback() uses list_entry() on the head of a list causing a type confusion. Local user can trigger this with rds_message_put(). Type confusion leads to `stru
- 7.0 High severity
Linux kernel: Access of Resource Using Incompatible Type
In the Linux kernel, pick_next_rt_entity() may return a type confused entry, not detected by the BUG_ON condition, as the confused entry will not be NULL, but list_head.The buggy error condition would lead to a type confused entry with the list head,which woul
- 7.1 High severity
Linux kernel: NULL Pointer Dereference
A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in progress to detach in sl_tx_timeout in drivers/net/slip/slip.c. This issue could allow an attacker to crash the system or leak internal kernel information.
- 7.5 High severity
Linux kernel: Use After Free
A use-after-free vulnerability was found in __nfs42_ssc_open() in fs/nfs/nfs4file.c in the Linux kernel. This flaw allows an attacker to conduct a remote denial
- 7.8 High severity
Linux kernel: Use After Free
A flaw was found in the Linux kernel implementation of proxied virtualized TPM devices. On a system where virtualized TPM devices are configured (this is not the default) a local attacker can create a use-after-free and create a situation where it may be possi
- 7.0 High severity
linux kernel: Concurrent Execution using Shared Resource with Improper Synchronization
A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged user to gain root privileges. The bug allows to build several exploit primitives such as kernel address information leak, arbitrary execution, etc.
- 7.0 High severity
Linux kernel: Concurrent Execution using Shared Resource with Improper Synchronization
A race condition was found in the Linux kernel's IP framework for transforming packets (XFRM subsystem) when multiple calls to xfrm_probe_algs occurred simultaneously. This flaw could allow a local attacker to potentially trigger an out-of-bounds write or leak
- 7.0 High severity
Linux kernel: Concurrent Execution using Shared Resource with Improper Synchronization
A race condition was found in the way the Linux kernel's memory subsystem handled the copy-on-write (COW) breakage of private read-only shared memory mappings. This flaw allows an unprivileged, local user to gain write access to read-only memory mappings, incr
- 7.8 High severity
Linux Kernel: Double Free
io_uring use work_flags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORING_OP. Some operations are missing some types, which can lead to incorrect reference counts whic
- 7.0 High severity
Linux Kernel Privilege Escalation Exploited
A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a
- 7.8 High severity
Linux Kernel Heap Out-of-Bounds Write Exploited
A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space