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
No CVSS score has been published yet.
Weakness enumeration
Affected software
| 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 |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) | >= V3.1.7, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) | >= V3.1.7, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) | >= V3.1.7, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) | >= V3.1.6, < * |
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) | >= V3.1.7, < * |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) | >= V3.1.6, < * |
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) | >= V3.1.7, < * |
References
- https://git.kernel.org/stable/c/190ad0f22ba49f1101182b80e3af50ca2ddfe72f
- https://git.kernel.org/stable/c/3d8d22e75f7edfa0b30ff27330fd6a1285d594c3
- https://git.kernel.org/stable/c/5b154e901fda2e98570b8f426a481f5740097dc2
- https://git.kernel.org/stable/c/b5d942922182e82724b7152cb998f540132885ec
- https://git.kernel.org/stable/c/b72a3476f0c97d02f63a6e9fff127348d55436f6
- https://git.kernel.org/stable/c/b97cb7d6a051aa6ebd57906df0e26e9e36c26d14
- https://git.kernel.org/stable/c/ce5f54c065a4a7cbb92787f4f140917112350142
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html
Timeline
- Published
- Jan 13, 2026
- Last modified
- Nov 10, 2026
- NVD status
- Deferred