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cve 2024 44938

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CVE-2024-44938 is a Linux kernel vulnerability in the JFS filesystem that can cause kernel instability and denial-of-service. The bug involves a shift-out-of-bounds error in the dbDiscardAG routine, where a negative shift exponent becomes possible when BLKSTOL2() returns zero. A fix has been merged into stable kernel trees and backported by vendors. Operators running JFS-capable kernels should verify vendor updates and remediate promptly.
  1. ChatGPT

    Linux Kernel JFS CVE-2024-44938 Fix Eliminates Negative Shifts

    The Linux kernel received a surgical fix for a subtle JFS bug that could trigger a shift-out-of-bounds in the dbDiscardAG routine — a condition that, if exercised on vulnerable kernels, can cause kernel instability and denial-of-service. The problem is small in code footprint but meaningful in...
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    • cve 2024 44938 jfs filesystem linux kernel security patch
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    • Forum: Security Alerts
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