ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode
Priority LOW 24Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 7 fixed, 4 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode There are many places that will get unhappy (and crash) when ext4_iget() returns a bad inode. However, if iget the boot loader inode, allows a bad inode to be returned, because the inode may not be initialized. This mechanism can be used to bypass some checks and cause panic. To solve this problem, we add a special iget flag EXT4_IGET_BAD. Only with this flag we'd be returning bad inode from ext4_iget(), otherwise we always return the error code if the inode is bad inode.(suggested by Jan Kara)
Why it matters now
EPSS 0.00173 6th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.4.229, 5.10.163, 5.15.87 +3Red Hat: 2 advisoriesRed Hat: 7 fixed, 4 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 3.10 and later | 5.4.229, 5.10.163, 5.15.87, 6.0.18, 6.1.4, 6.2 | Patch available | CNA |
- Linux VendorLinux Affected 3.10 and later Fixed in 5.4.229, 5.10.163, 5.15.87, 6.0.18, 6.1.4, 6.2 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 3.10 to before 5.4.229; 5.5 to before 5.10.163; 5.11 to before 5.15.87; 5.16 to before 6.0.18; 6.1 to before 6.1.4 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 3.10 to before 5.4.229; 5.5 to before 5.10.163; 5.11 to before 5.15.87; 5.16 to before 6.0.18; 6.1 to before 6.1.4 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.4.229, 5.10.163, 5.15.87, 6.0.18, 6.1.4, 6.2
Red Hat 2 advisories
- RHSA-2024:3138 Released 2024-05-22 · Red Hat rating Moderatekernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.el8_10, kernel-4.18.0-553.el8_10, kernel-abi-stablelists-4.18.0-553.el8_10 +19
- Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.el8_10
- RHSA-2024:2394 Released 2024-04-30 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-427.13.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.13.1.el9_4, kernel-64k-devel-5.14.0-427.13.1.el9_4 +11
- Red Hat Enterprise Linux BaseOS (v. 9) bpftool-7.3.0-427.13.1.el9_4, kernel-5.14.0-427.13.1.el9_4, kernel-64k-5.14.0-427.13.1.el9_4 +29
- Red Hat Enterprise Linux CRB (v. 9) kernel-tools-libs-devel-5.14.0-427.13.1.el9_4, libperf-5.14.0-427.13.1.el9_4
- Red Hat Enterprise Linux NFV (v. 9) kernel-rt-5.14.0-427.13.1.el9_4, kernel-rt-core-5.14.0-427.13.1.el9_4, kernel-rt-debug-5.14.0-427.13.1.el9_4 +11
- Red Hat Enterprise Linux RT (v. 9) kernel-rt-5.14.0-427.13.1.el9_4, kernel-rt-core-5.14.0-427.13.1.el9_4, kernel-rt-debug-5.14.0-427.13.1.el9_4 +9
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 8 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:2394 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2024:3138 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2024:2394 |
| Red Hat Enterprise Linux CRB (v. 8) | Fixed | RHSA-2024:3138 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2024:2394 |
| Red Hat Enterprise Linux NFV (v. 9) | Fixed | RHSA-2024:2394 |
| Red Hat Enterprise Linux RT (v. 9) | Fixed | RHSA-2024:2394 |
Not affected: 1 product
- Red Hat Enterprise Linux 10
Timeline
- 2026-10-02 Threatist record created from CVE-2022-50485
- 2026-10-03 Alias added: GHSA-7gg4-pr88-8256
References
Patch 6
- https://git.kernel.org/stable/c/2142dfa1de61e25b83198af0308ec7689cca25d3
- https://git.kernel.org/stable/c/c0a738875c2e9c8c3366d792f8bf7fe508d5e5a5
- https://git.kernel.org/stable/c/f7e6b5548f915d7aa435d0764d41eacfb49c6e09
- https://git.kernel.org/stable/c/f725b290ed79ad61e4f721fee95a287892d8b1ad
- https://git.kernel.org/stable/c/488a5c2bf7543c3cd3f07a025f2e62be91599430
- https://git.kernel.org/stable/c/63b1e9bccb71fe7d7e3ddc9877dbdc85e5d2d023
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Sources
- CVE-2022-50485 · CVE Program
- CVE-2022-50485 · NVD
- FIRST EPSS
- GHSA-7gg4-pr88-8256 · GitHub Advisory Database · CC BY 4.0
- CVE-2022-50485 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences