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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2024-44966

binfmt_flat: Fix corruption when not offsetting data start

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: binfmt_flat: Fix corruption when not offsetting data start Commit 04d82a6d0881 ("binfmt_flat: allow not offsetting data start") introduced a RISC-V specific variant of the FLAT format which does not allocate any space for the (obsolete) array of shared library pointers. However, it did not disable the code which initializes the array, resulting in the corruption of sizeof(long) bytes before the DATA segment, generally the end of the TEXT segment. Introduce MAX_SHARED_LIBS_UPDATE which depends on the state of CONFIG_BINFMT_FLAT_NO_DATA_START_OFFSET to guard the initialization of the shared library pointer region so that it will only be initialized if space is reserved for it.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 04d82a6d0881ef1ab1e9f66f10805177ee2fb1e8 to < 3a684499261d0f7ed5ee72793025c88c2276809caffected
  • 04d82a6d0881ef1ab1e9f66f10805177ee2fb1e8 to < af65d5383854cc3f172a7d0843b628758bf462c8affected
  • 04d82a6d0881ef1ab1e9f66f10805177ee2fb1e8 to < 49df34d2b7da9e57c839555a2f7877291ce45ad1affected
  • 04d82a6d0881ef1ab1e9f66f10805177ee2fb1e8 to < 9350ba06ee61db392c486716ac68ecc20e030f7caffected
  • 04d82a6d0881ef1ab1e9f66f10805177ee2fb1e8 to < 3eb3cd5992f7a0c37edc8d05b4c38c98758d8671affected

Linux Linux

Default version status: affected

  • 5.13affected
  • 0 to < 5.13unaffected
  • 5.15.165 to ≤ 5.15.*unaffected
  • 6.1.106 to ≤ 6.1.*unaffected
  • 6.6.47 to ≤ 6.6.*unaffected
  • 6.10.6 to ≤ 6.10.*unaffected
  • 6.11 to ≤ *unaffected

References