opp: Fix use-after-free in lazy_opp_tables after probe deferral
Summary
| CVE | CVE-2023-54026 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2025-12-24 11:15:55 UTC |
| Updated | 2026-08-04 10:19:25 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: opp: Fix use-after-free in lazy_opp_tables after probe deferral When dev_pm_opp_of_find_icc_paths() in _allocate_opp_table() returns -EPROBE_DEFER, the opp_table is freed again, to wait until all the interconnect paths are available. However, if the OPP table is using required-opps then it may already have been added to the global lazy_opp_tables list. The error path does not remove the opp_table from the list again. This can cause crashes later when the provider of the required-opps is added, since we will iterate over OPP tables that have already been freed. E.g.: Unable to handle kernel NULL pointer dereference when read CPU: 0 PID: 7 Comm: kworker/0:0 Not tainted 6.4.0-rc3 PC is at _of_add_opp_table_v2 (include/linux/of.h:949 drivers/opp/of.c:98 drivers/opp/of.c:344 drivers/opp/of.c:404 drivers/opp/of.c:1032) -> lazy_link_required_opp_table() Fix this by calling _of_clear_opp_table() to remove the opp_table from the list and clear other allocated resources. While at it, also add the missing mutex_destroy() calls in the error path. |
Risk And Classification
Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.001210000 probability, percentile 0.022700000 (date 2026-08-06)
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 7eba0c7641b0009818e469dbfcdd87a0155ab9d4 39a0e723d3502f6dc4c603f57ebe8dc7bcc4a4bc git | Not specified |
| CNA | Linux | Linux | affected 7eba0c7641b0009818e469dbfcdd87a0155ab9d4 76ab057de777723ec924654502d1a260ba7d7d54 git | Not specified |
| CNA | Linux | Linux | affected 7eba0c7641b0009818e469dbfcdd87a0155ab9d4 c05e76d6b249e5254c31994eedd06dd3cc90dee0 git | Not specified |
| CNA | Linux | Linux | affected 7eba0c7641b0009818e469dbfcdd87a0155ab9d4 b2a2ab039bd58f51355e33d7d3fc64605d7f870d git | Not specified |
| CNA | Linux | Linux | affected 5.12 | Not specified |
| CNA | Linux | Linux | unaffected 5.12 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.121 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.40 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.4.5 6.4.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.5 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/76ab057de777723ec924654502d1a260ba7d7d54 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/c05e76d6b249e5254c31994eedd06dd3cc90dee0 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/39a0e723d3502f6dc4c603f57ebe8dc7bcc4a4bc | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/b2a2ab039bd58f51355e33d7d3fc64605d7f870d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.