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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2024-26926

binder: check offset alignment in binder_get_object()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: binder: check offset alignment in binder_get_object() Commit 6d98eb95b450 ("binder: avoid potential data leakage when copying txn") introduced changes to how binder objects are copied. In doing so, it unintentionally removed an offset alignment check done through calls to binder_alloc_copy_from_buffer() -> check_buffer(). These calls were replaced in binder_get_object() with copy_from_user(), so now an explicit offset alignment check is needed here. This avoids later complications when unwinding the objects gets harder. It is worth noting this check existed prior to commit 7a67a39320df ("binder: add function to copy binder object from buffer"), likely removed due to redundancy at the time.

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

  • c056a6ba35e00ae943e377eb09abd77a6915b31a to < 68a28f551e4690db2b27b3db716c7395f6fada12affected
  • 23e9d815fad84c1bee3742a8de4bd39510435362 to < 48a1f83ca9c68518b1a783c62e6a8223144fa9fcaffected
  • 7a9ad4aceb0226b391c9d3b8e4ac2e7d438b6bde to < a2fd6dbc98be1105a1d8e9e31575da8873ef115caffected
  • 6d98eb95b450a75adb4516a1d33652dc78d2b20c to < a6d2a8b211c874971ee4cf3ddd167408177f6e76affected
  • 6d98eb95b450a75adb4516a1d33652dc78d2b20c to < 1d7f1049035b2060342f11eff957cf567d810bdcaffected
  • 6d98eb95b450a75adb4516a1d33652dc78d2b20c to < f01d6619045704d78613b14e2e0420bfdb7f1c15affected
  • 6d98eb95b450a75adb4516a1d33652dc78d2b20c to < aaef73821a3b0194a01bd23ca77774f704a04d40affected
  • 66e12f5b3a9733f941893a00753b10498724607daffected
  • 5.4.226 to < 5.4.275affected
  • 5.10.157 to < 5.10.216affected
  • 5.15.17 to < 5.15.157affected
  • 5.16.3 to < 5.17affected

Linux Linux

Default version status: affected

  • 5.17affected
  • 0 to < 5.17unaffected
  • 5.4.275 to ≤ 5.4.*unaffected
  • 5.10.216 to ≤ 5.10.*unaffected
  • 5.15.157 to ≤ 5.15.*unaffected
  • 6.1.88 to ≤ 6.1.*unaffected
  • 6.6.29 to ≤ 6.6.*unaffected
  • 6.8.8 to ≤ 6.8.*unaffected
  • 6.9 to ≤ *unaffected

References