ima: Check for ERR_PTR from dentry_path() in validate_hash_algo()
Summary
| CVE | CVE-2026-89989 |
|---|
| State | PUBLISHED |
|---|
| Assigner | Linux |
|---|
| Source Priority | CVE Program / NVD first with legacy fallback |
|---|
| Published | 2026-09-16 11:17:10 UTC |
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| Updated | 2026-09-16 11:17:10 UTC |
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| Description | In the Linux kernel, the following vulnerability has been resolved:
ima: Check for ERR_PTR from dentry_path() in validate_hash_algo()
dentry_path() returns ERR_PTR(-ENAMETOOLONG) when the path exceeds the
buffer. validate_hash_algo() passes the result straight to
integrity_audit_msg() without checking. ERR_PTR is not NULL, so
integrity_audit_message() sees a valid pointer and calls strlen() on
it, which faults:
BUG: unable to handle page fault for address: ffffffffffffffdc
RIP: 0010:strlen+0x30/0xa0
Call Trace:
audit_log_untrustedstring+0x19/0x30
integrity_audit_message+0x366/0x4f0
ima_inode_setxattr+0x512/0x5f0
Check for IS_ERR() and use NULL instead, which makes the audit message
skip the name= field instead of crashing. |
|---|
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|
| CNA |
Linux |
Linux |
affected 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 d6fade89903c8fd0af6c956242aec8b927040e02 git |
Not specified |
| CNA |
Linux |
Linux |
affected 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 0de5b525c0cd7d202848b8adfde3c01c287fb1a6 git |
Not specified |
| CNA |
Linux |
Linux |
affected 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 30b5c0e17dcad72b6b2f987319aa645570e6376d git |
Not specified |
| CNA |
Linux |
Linux |
affected 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 9e69d683ebd7def04557fe758ff123105d7d9840 git |
Not specified |
| CNA |
Linux |
Linux |
affected 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 f8a2f2a4602318eb93d49d27fd0d0fdaab17edde git |
Not specified |
| CNA |
Linux |
Linux |
affected 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 d62a84a78de5f29c642fa3bd4eee072ba7289cb4 git |
Not specified |
| CNA |
Linux |
Linux |
affected 4f2946aa0c45c78b4f4ef101bab9694e38c68db0 8861f6d5c0678a7c5089c7b272509fc5931b8437 git |
Not specified |
| CNA |
Linux |
Linux |
affected 5.15 |
Not specified |
| CNA |
Linux |
Linux |
unaffected 5.15 semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 5.15.221 5.15.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.1.188 6.1.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.6.157 6.6.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.12.110 6.12.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 6.18.51 6.18.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 7.2.5 7.2.* semver |
Not specified |
| CNA |
Linux |
Linux |
unaffected 7.3-rc2 * original_commit_for_fix |
Not specified |
References
| Reference | Source | Link | Tags |
|---|
| git.kernel.org/stable/c/d62a84a78de5f29c642fa3bd4eee072ba7289cb4 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/d6fade89903c8fd0af6c956242aec8b927040e02 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/8861f6d5c0678a7c5089c7b272509fc5931b8437 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/f8a2f2a4602318eb93d49d27fd0d0fdaab17edde |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/0de5b525c0cd7d202848b8adfde3c01c287fb1a6 |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/30b5c0e17dcad72b6b2f987319aa645570e6376d |
416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
git.kernel.org |
|
| git.kernel.org/stable/c/9e69d683ebd7def04557fe758ff123105d7d9840 |
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.