CVE-2025-68820
Last modified
CVE-2025-68820 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: ext4: xattr: fix null pointer deref in ext4_raw_inode() If ext4_get_inode_loc() fails (e.g. if it returns -EFSCORRUPTED), iloc.bh will remain set to NULL. EPSS estimates a 0.17% chance of exploitation in the next 30 days.
Description
In the Linux kernel, the following vulnerability has been resolved: ext4: xattr: fix null pointer deref in ext4_raw_inode() If ext4_get_inode_loc() fails (e.g. if it returns -EFSCORRUPTED), iloc.bh will remain set to NULL. Since ext4_xattr_inode_dec_ref_all() lacks error checking, this will lead to a null pointer dereference in ext4_raw_inode(), called right after ext4_get_inode_loc(). Found by Linux Verification Center (linuxtesting.org) with SVACE.
Metrics
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3, < b72a3476f0c97d02f63a6e9fff127348d55436f6; >= f737418b6de31c962c7192777ee4018906975383, < 3d8d22e75f7edfa0b30ff27330fd6a1285d594c3; >= cf9291a3449b04688b81e32621e88de8f4314b54, < 190ad0f22ba49f1101182b80e3af50ca2ddfe72f; >= 362a90cecd36e8a5c415966d0b75b04a0270e4dd, < b5d942922182e82724b7152cb998f540132885ec; >= eb59cc31b6ea076021d14b04e7faab1636b87d0e, < 5b154e901fda2e98570b8f426a481f5740097dc2; >= c8e008b60492cf6fd31ef127aea6d02fd3d314cd, < ce5f54c065a4a7cbb92787f4f140917112350142; >= c8e008b60492cf6fd31ef127aea6d02fd3d314cd, < b97cb7d6a051aa6ebd57906df0e26e9e36c26d14; 6aff941cb0f7d0c897c3698ad2e30672709135e3; 3bc6317033f365ce578eb6039445fb66162722fd; 836e625b03a666cf93ff5be328c8cb30336db872; >= 5.10.237, < 5.10.248; >= 5.15.181, < 5.15.198; >= 6.1.135, < 6.1.160; >= 6.6.88, < 6.6.120; >= 6.12.24, < 6.12.64; >= 5.4.293, < 5.5; >= 6.13.12, < 6.14; >= 6.14.3, < 6.15 |
| Linux | Linux | 6.15 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
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