kernel: fs/quota/quota_tree.c does not validate the block number in the quota tree

In the Linux kernel before 5.15.3, fs/quota/quota_tree.c does not validate the block number in the quota tree (on disk). This can, for example, lead to a kernel/locking/rwsem.c use-after-free if there is a corrupted quota file.

kernel: information leak in the IPv4 implementation

In the IPv4 implementation in the Linux kernel before 5.12.4, net/ipv4/route.c has an information leak because the hash table is very small.

kernel: information leak in the IPv6 implementation

In the IPv6 implementation in the Linux kernel before 5.13.3, net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses.

kernel: memory leak in the __rds_conn_create() in net/rds/connection.c

An issue was discovered in the Linux kernel before 5.15.11. There is a memory leak in the __rds_conn_create() function in net/rds/connection.c in a certain combination of circumstances.

kernel: out-of-bounds memory access in __f2fs_setxattr() in fs/f2fs/xattr.c when an inode has an invalid last xattr entry

In __f2fs_setxattr in fs/f2fs/xattr.c in the Linux kernel through 5.15.11, there is an out-of-bounds memory access when an inode has an invalid last xattr entry.

kernel: ksmbd server communicates in cleartext even though encryption has been enabled due to a violation of the SMB protocol specification

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 because it sets the SMB2_GLOBAL_CAP_ENCRYPTION flag when using the SMB 3.1.1 protocol, which is a violation of the SMB protocol specification. When Windows 10 detects this protocol violation, it disables encryption.

kernel: refcount leak in pep_sock_accept() in net/phonet/pep.c

pep_sock_accept in net/phonet/pep.c in the Linux kernel through 5.15.8 has a refcount leak.

kernel: use-after-free in the TEE subsystem

A use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel through 5.15.11. This occurs because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object.

Lack of websocket authentication in Lens causes remote code execution when visiting a malicious website

Linux users running Lens 5.2.6 and earlier could be compromised by visiting a malicious website. The malicious website could make websocket connections from the victim's browser to Lens and so operate the local terminal feature. This would allow the attacker to execute arbitrary commands as the Lens user.

Stored cross-site scripting (XSS) was possible in protection plan details

Stored cross-site scripting (XSS) was possible in protection plan details. The following products are affected: Acronis Cyber Protect 15 (Windows, Linux) before build 28035

Stored cross-site scripting (XSS) was possible in activity details

Stored cross-site scripting (XSS) was possible in activity details. The following products are affected: Acronis Cyber Protect 15 (Windows, Linux) before build 28035

Cross-site scripting (XSS) was possible in notification pop-ups

Cross-site scripting (XSS) was possible in notification pop-ups. The following products are affected: Acronis Cyber Protect 15 (Windows, Linux) before build 28035

Self cross-site scripting (XSS) was possible on devices page

Self cross-site scripting (XSS) was possible on devices page. The following products are affected: Acronis Cyber Protect 15 (Windows, Linux) before build 28035

kernel: mwifiex_usb_recv() in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker to cause DoS via crafted USB device

In the Linux kernel through 5.15.2, mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker (who can connect a crafted USB device) to cause a denial of service (skb_over_panic).

kernel: an array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c

An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c.

kernel: Insufficient validation of user-supplied sizes for the MSG_CRYPTO message type

An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communication (TIPC) functionality allows remote attackers to exploit insufficient validation of user-supplied sizes for the MSG_CRYPTO message type.

kernel: use-after-free in the SELinux handler for PTRACE_TRACEME

An issue was discovered in the Linux kernel before 5.14.8. A use-after-free in selinux_ptrace_traceme (aka the SELinux handler for PTRACE_TRACEME) could be used by local attackers to cause memory corruption and escalate privileges, aka CID-a3727a8bac0a. This occurs because of an attempt to access the subjective credentials of another task.

kernel: ppc: kvm: allows a malicious KVM guest to crash the host

An issue was discovered in the Linux kernel for powerpc before 5.14.15. It allows a malicious KVM guest to crash the host, when the host is running on Power8, due to an arch/powerpc/kvm/book3s_hv_rmhandlers.S implementation bug in the handling of the SRR1 register values.

kernel: Heap buffer overflow in firedtv driver

The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/firedtv-avc.c and drivers/media/firewire/firedtv-ci.c, because avc_ca_pmt mishandles bounds checking.

PrinterLogic Web Stack versions 19.1.1.13 SP9 and below do not sanitize user input resulting in pre-auth remote code execution.