CVE-2025-68820
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedJan 13, 2026
First seenJan 13, 2026
Weakness typeCWE-476NULL pointer dereference
How to fix
Update
- Linux Linuxb72a3476f0c97d02f63a6e9fff127348d55436f6, 3d8d22e75f7edfa0b30ff27330fd6a1285d594c3, 190ad0f22ba49f1101182b80e3af50ca2ddfe72f, b5d942922182e82724b7152cb998f540132885ec, 5b154e901fda2e98570b8f426a481f5740097dc2, ce5f54c065a4a7cbb92787f4f140917112350142, b97cb7d6a051aa6ebd57906df0e26e9e36c26d14, 5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.64, 5.5, 6.14, 6.15 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3 ≤ v < b72a3476f0c97d02f63a6e9fff127348d55436f6, f737418b6de31c962c7192777ee4018906975383 ≤ v < 3d8d22e75f7edfa0b30ff27330fd6a1285d594c3, cf9291a3449b04688b81e32621e88de8f4314b54 ≤ v < 190ad0f22ba49f1101182b80e3af50ca2ddfe72f, 362a90cecd36e8a5c415966d0b75b04a0270e4dd ≤ v < b5d942922182e82724b7152cb998f540132885ec, eb59cc31b6ea076021d14b04e7faab1636b87d0e ≤ v < 5b154e901fda2e98570b8f426a481f5740097dc2, c8e008b60492cf6fd31ef127aea6d02fd3d314cd ≤ v < ce5f54c065a4a7cbb92787f4f140917112350142, c8e008b60492cf6fd31ef127aea6d02fd3d314cd ≤ v < b97cb7d6a051aa6ebd57906df0e26e9e36c26d14, 6aff941cb0f7d0c897c3698ad2e30672709135e3, 3bc6317033f365ce578eb6039445fb66162722fd, 836e625b03a666cf93ff5be328c8cb30336db872, 5.10.237 ≤ v < 5.10.248, 5.15.181 ≤ v < 5.15.198, 6.1.135 ≤ v < 6.1.160, 6.6.88 ≤ v < 6.6.120, 6.12.24 ≤ v < 6.12.64, 5.4.293 ≤ v < 5.5, 6.13.12 ≤ v < 6.14, 6.14.3 ≤ v < 6.15, 6.15 | b72a3476f0c97d02f63a6e9fff127348d55436f6, 3d8d22e75f7edfa0b30ff27330fd6a1285d594c3, 190ad0f22ba49f1101182b80e3af50ca2ddfe72f, b5d942922182e82724b7152cb998f540132885ec, 5b154e901fda2e98570b8f426a481f5740097dc2, ce5f54c065a4a7cbb92787f4f140917112350142, b97cb7d6a051aa6ebd57906df0e26e9e36c26d14, 5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.64, 5.5, 6.14, 6.15 |
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