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CVE-2024-35936

Disclosure Date: May 19, 2024 •
CVE-2024-35936
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Description

In the Linux kernel, the following vulnerability has been resolved:

btrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks()

The unhandled case in btrfs_relocate_sys_chunks() loop is a corruption,
as it could be caused only by two impossible conditions:

  • at first the search key is set up to look for a chunk tree item, with
    offset -1, this is an inexact search and the key->offset will contain
    the correct offset upon a successful search, a valid chunk tree item
    cannot have an offset -1

  • after first successful search, the found_key corresponds to a chunk
    item, the offset is decremented by 1 before the next loop, it’s
    impossible to find a chunk item there due to alignment and size
    constraints

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CVSS V3 Severity and Metrics
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General Information

Offensive Application
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OS
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Vulnerable Versions
Linux bebd9e0ff900
Linux not down converted
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Vendors

  • Linux

Products

  • Linux
Technical Analysis