CVE-2023-52810
In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add check for negative db_l2nbperpage l2nbperpage is log2(numb
CVSS
7.8
Alto
EPSS
0.3%
p17
KEV
—
Exploit Today
5
0-100
Publicado: 21 may 2024 · Última mod.: 4 ago 2026 · CWE-1335
0.3%EPSS · 30 días0.3%
2026-08-032026-08-31
In the Linux kernel, the following vulnerability has been resolved: fs/jfs: Add check for negative db_l2nbperpage l2nbperpage is log2(number of blks per page), and the minimum legal value should be 0, not negative. In the case of l2nbperpage being negative, an error will occur when subsequently used as shift exponent. Syzbot reported this bug: UBSAN: shift-out-of-bounds in fs/jfs/jfs_dmap.c:799:12 shift exponent -16777216 is negative
- git.kernel.orghttps://git.kernel.org/stable/c/0cb567e727339a192f9fd0db00781d73a91d15a6
- git.kernel.orghttps://git.kernel.org/stable/c/1a7c53fdea1d189087544d9a606d249e93c4934b
- git.kernel.orghttps://git.kernel.org/stable/c/491085258185ffc4fb91555b0dba895fe7656a45
- git.kernel.orghttps://git.kernel.org/stable/c/524b4f203afcf87accfe387e846f33f916f0c907
- git.kernel.orghttps://git.kernel.org/stable/c/525b861a008143048535011f3816d407940f4bfa
- git.kernel.orghttps://git.kernel.org/stable/c/5f148b16972e5f4592629b244d5109b15135f53f
- git.kernel.orghttps://git.kernel.org/stable/c/8f2964df6bfce9d92d81ca552010b8677af8d9dc
- git.kernel.orghttps://git.kernel.org/stable/c/a81a56b4cbe3142cc99f6b98e8f9b3a631c768e1
- git.kernel.orghttps://git.kernel.org/stable/c/cc61fcf7d1c99f148fe8ddfb5c6ed0bb75861f01
- git.kernel.orghttps://git.kernel.org/stable/c/0cb567e727339a192f9fd0db00781d73a91d15a6
- git.kernel.orghttps://git.kernel.org/stable/c/1a7c53fdea1d189087544d9a606d249e93c4934b
- git.kernel.orghttps://git.kernel.org/stable/c/491085258185ffc4fb91555b0dba895fe7656a45
- git.kernel.orghttps://git.kernel.org/stable/c/524b4f203afcf87accfe387e846f33f916f0c907
- git.kernel.orghttps://git.kernel.org/stable/c/525b861a008143048535011f3816d407940f4bfa
- git.kernel.orghttps://git.kernel.org/stable/c/5f148b16972e5f4592629b244d5109b15135f53f
- git.kernel.orghttps://git.kernel.org/stable/c/8f2964df6bfce9d92d81ca552010b8677af8d9dc
- git.kernel.orghttps://git.kernel.org/stable/c/a81a56b4cbe3142cc99f6b98e8f9b3a631c768e1
- git.kernel.orghttps://git.kernel.org/stable/c/cc61fcf7d1c99f148fe8ddfb5c6ed0bb75861f01
CVECVSSEPSSKEVRExplotTítuloVis.
CVE-2026-50726.5 MED22.2%
——7A bitwise shift vulnerability in Zephyr's PTP subsystem allows a remote attacker to cause undefined behavior and potential system crashes. An attacker sends a crafted PTP_MSG_MANAGEMENT message to set an unvalidated negative log_announce_interval value in the port's data set. When a subsequent PTP_MSG_ANNOUNCE message is processed, port_timer_set_timeout_random computes a timeout as NSEC_PER_SEC >> -log_seconds; if the attacker-supplied value is sufficiently negative (e.g., -127), the shift amount exceeds the 64-bit integer width, triggering undefined behavior in C. This can cause a system crash via a compiler-generated illegal instruction trap on some architectures, or produce an erroneous zero timeout leading to resource starvation loops or other logical errors.40dCVE-2026-44266.5 MED22.7%
——7A flaw was found in libarchive. An Undefined Behavior vulnerability exists in the zisofs decompression logic, caused by improper validation of a field (`pz_log2_bs`) read from ISO9660 Rock Ridge extensions. A remote attacker can exploit this by supplying a specially crafted ISO file. This can lead to incorrect memory allocation and potential application crashes, resulting in a denial-of-service (DoS) condition.21hCVE-2016-98428.8 ALT91.9%
——28The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shifts of negative integers.49d