CVE-2023-52799
In the Linux kernel, the following vulnerability has been resolved: jfs: fix array-index-out-of-bounds in dbFindLeaf Currently while searc
CVSS
7.8
High
EPSS
0.3%
p17
KEV
—
Exploit Today
5
0-100
Published: May 21, 2024 · Last modified: Aug 4, 2026 · CWE-129
0.3%EPSS · 30 days0.3%
2026-08-012026-08-28
In the Linux kernel, the following vulnerability has been resolved: jfs: fix array-index-out-of-bounds in dbFindLeaf Currently while searching for dmtree_t for sufficient free blocks there is an array out of bounds while getting element in tp->dm_stree. To add the required check for out of bound we first need to determine the type of dmtree. Thus added an extra parameter to dbFindLeaf so that the type of tree can be determined and the required check can be applied.
- git.kernel.orghttps://git.kernel.org/stable/c/20f9310a18e3e99fc031e036fcbed67105ae1859
- git.kernel.orghttps://git.kernel.org/stable/c/22cad8bc1d36547cdae0eef316c47d917ce3147c
- git.kernel.orghttps://git.kernel.org/stable/c/81aa58cd8495b8c3b527f58ccbe19478d8087f61
- git.kernel.orghttps://git.kernel.org/stable/c/86df90f3fea7c5591f05c8a0010871d435e83046
- git.kernel.orghttps://git.kernel.org/stable/c/87c681ab49e99039ff2dd3e71852417381b13878
- git.kernel.orghttps://git.kernel.org/stable/c/88b7894a8f8705bf4e7ea90b10229376abf14514
- git.kernel.orghttps://git.kernel.org/stable/c/a50b796d36719757526ee094c703378895ab5e67
- git.kernel.orghttps://git.kernel.org/stable/c/da3da5e1e6f71c21d8e6149d7076d936ef5d4cb9
- git.kernel.orghttps://git.kernel.org/stable/c/ecfb47f13b08b02cf28b7b50d4941eefa21954d2
- git.kernel.orghttps://git.kernel.org/stable/c/20f9310a18e3e99fc031e036fcbed67105ae1859
- git.kernel.orghttps://git.kernel.org/stable/c/22cad8bc1d36547cdae0eef316c47d917ce3147c
- git.kernel.orghttps://git.kernel.org/stable/c/81aa58cd8495b8c3b527f58ccbe19478d8087f61
- git.kernel.orghttps://git.kernel.org/stable/c/86df90f3fea7c5591f05c8a0010871d435e83046
- git.kernel.orghttps://git.kernel.org/stable/c/87c681ab49e99039ff2dd3e71852417381b13878
- git.kernel.orghttps://git.kernel.org/stable/c/88b7894a8f8705bf4e7ea90b10229376abf14514
- git.kernel.orghttps://git.kernel.org/stable/c/a50b796d36719757526ee094c703378895ab5e67
- git.kernel.orghttps://git.kernel.org/stable/c/da3da5e1e6f71c21d8e6149d7076d936ef5d4cb9
- git.kernel.orghttps://git.kernel.org/stable/c/ecfb47f13b08b02cf28b7b50d4941eefa21954d2
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-823275.5 MED—
——0A flaw was found in libsolv, a dependency-resolution library used by RPM-based package managers such as dnf and zypper to work with .solv repository cache files. When libsolv rewrites a .solv cache file, it reads directory-id values from the file's compressed filelist data without validating that they fall within the expected range. A corrupted or specially crafted .solv cache file (for example, one left in a torn state after an unclean system shutdown) can cause an out-of-bounds memory write when a tool such as dnf, yum, or zypper next processes it. Successful exploitation is expected to result in a crash of the affected tool (denial of service); it is not expected to allow arbitrary code execution because the out-of-bounds write always stores a fixed, non-attacker-controlled value.2dCVE-2026-19318—38.8%
——12A stack-based buffer overflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic.1dCVE-2026-797756.5 MED22.8%
——7rclone versions >= v1.72.0 and <= v1.74.4 (fixed in v1.75.0) contain multiple denial-of-service vulnerabilities in the archive backend's SquashFS parser, which relies on the github.com/diskfs/go-diskfs dependency. The parser fails to validate attacker-controlled superblock and metadata values before use. An attacker who can place or modify a SquashFS image in storage exposed through an rclone :archive: remote can craft a malicious image that triggers an integer division-by-zero panic (zero block size), an out-of-bounds slice panic (out-of-range inode metadata offset), or a non-progress CPU loop (truncated metadata stream). Variants 1 and 2 terminate the rclone process and, via 'rclone serve sftp', can crash the entire SFTP server; variant 3 causes sustained CPU consumption. Parsing is lazy, so a victim or remote client must address or descend into the malicious archive object to trigger it.21hCVE-2026-132128.8 HIG12.8%
——4The Zephyr virtio driver does not validate the descriptor-chain head id that the virtio device writes into the used ring. In virtio_isr() (drivers/virtio/virtio_common.c), the device-written vq->used->ring[idx].id is used directly as an index into vq->recv_cbs[] and vq->desc[], which are both allocated with exactly vq->num entries. recv_cbs[] holds {cb, opaque} callback entries, and the indexed callback pointer is then invoked as cbe.cb(cbe.opaque, used_len).
Because the id is consumed as a 16-bit value with no bound check, a malicious or compromised virtio backend (an untrusted hypervisor, or an untrusted hardware/peer-processor virtio device on a PCI or MMIO transport) can supply an id far beyond vq->num. This causes an out-of-bounds read of a {function pointer, argument} pair from heap memory beyond recv_cbs[], after which the driver calls that attacker-shaped pointer in the guest's interrupt context. No guest privileges or user interaction are required; the backend triggers it by writing the shared used ring and raising the queue interrupt.
The result is an arbitrary / attacker-influenced function-pointer call in the Zephyr guest, i.e. a control-flow-hijack primitive that can lead to code execution or, at minimum, a reliable crash. The fix rejects any used-ring id >= vq->num before indexing recv_cbs[]/desc[] or invoking the callback. This affects builds using CONFIG_VIRTIO with the PCI or MMIO transport.6dCVE-2026-170977.3 HIG1.5%
——0IBM PowerVM Hypervisor FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the PowerVM hypervisor call interface. An attacker with root access to a guest partition can issue a specially crafted hypervisor call causing a virtual processor to become permanently unresponsive, requiring a full platform re-IPL to restore normal operation. In some cases this may also cause the guest to inject a small amount of data into hypervisor or partition memory with no attacker control over the target location. Successful exploitation results in an integrity and availability impact to the managed system.5dCVE-2026-168494.3 MED9.7%
——3IBM AIX 7.2, and 7.3 and IBM PowerVM VIOS 4.1 could allow a remote attacker to cause a denial of service due to an improper check for an array index boundary.6d