CVE-2025-39869 (GCVE-0-2025-39869)

Vulnerability from cvelistv5 – Published: 2025-09-23 06:00 – Updated: 2025-11-03 17:44
VLAI?
Title
dmaengine: ti: edma: Fix memory allocation size for queue_priority_map
Summary
In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: edma: Fix memory allocation size for queue_priority_map Fix a critical memory allocation bug in edma_setup_from_hw() where queue_priority_map was allocated with insufficient memory. The code declared queue_priority_map as s8 (*)[2] (pointer to array of 2 s8), but allocated memory using sizeof(s8) instead of the correct size. This caused out-of-bounds memory writes when accessing: queue_priority_map[i][0] = i; queue_priority_map[i][1] = i; The bug manifested as kernel crashes with "Oops - undefined instruction" on ARM platforms (BeagleBoard-X15) during EDMA driver probe, as the memory corruption triggered kernel hardening features on Clang. Change the allocation to use sizeof(*queue_priority_map) which automatically gets the correct size for the 2D array structure.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2b6b3b7420190888793c49e97276e1e73bd7eaed , < 7d4de60d6db02d9b01d5890d5156b04fad65d07a (git)
Affected: 2b6b3b7420190888793c49e97276e1e73bd7eaed , < d722de80ce037dccf6931e778f4a46499d51bdf9 (git)
Affected: 2b6b3b7420190888793c49e97276e1e73bd7eaed , < 301a96cc4dc006c9a285913d301e681cfbf7edb6 (git)
Affected: 2b6b3b7420190888793c49e97276e1e73bd7eaed , < 5e462fa0dfdb52b3983cf41532d3d4c7d63e2f93 (git)
Affected: 2b6b3b7420190888793c49e97276e1e73bd7eaed , < 1baed10553fc8b388351d8fc803e3ae6f1a863bc (git)
Affected: 2b6b3b7420190888793c49e97276e1e73bd7eaed , < 069fd1688c57c0cc8a3de64d108579b31676f74b (git)
Affected: 2b6b3b7420190888793c49e97276e1e73bd7eaed , < d5e82f3f2c918d446df46e8d65f8083fd97cdec5 (git)
Affected: 2b6b3b7420190888793c49e97276e1e73bd7eaed , < e63419dbf2ceb083c1651852209c7f048089ac0f (git)
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    Linux Linux Affected: 4.4
Unaffected: 0 , < 4.4 (semver)
Unaffected: 5.4.300 , ≤ 5.4.* (semver)
Unaffected: 5.10.245 , ≤ 5.10.* (semver)
Unaffected: 5.15.194 , ≤ 5.15.* (semver)
Unaffected: 6.1.153 , ≤ 6.1.* (semver)
Unaffected: 6.6.107 , ≤ 6.6.* (semver)
Unaffected: 6.12.48 , ≤ 6.12.* (semver)
Unaffected: 6.16.8 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
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