erofs: handle NONHEAD !delta[1] lclusters gracefully
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
In the Linux kernel, the following vulnerability has been resolved: erofs: handle NONHEAD !delta[1] lclusters gracefully syzbot reported a WARNING in iomap_iter_done: iomap_fiemap+0x73b/0x9b0 fs/iomap/fiemap.c:80 ioctl_fiemap fs/ioctl.c:220 [inline] Generally, NONHEAD lclusters won't have delta[1]==0, except for crafted images and filesystems created by pre-1.0 mkfs versions. Previously, it would immediately bail out if delta[1]==0, which led to inadequate decompressed lengths (thus FIEMAP is impacted). Treat it as delta[1]=1 to work around these legacy mkfs versions. `lclusterbits > 14` is illegal for compact indexes, error out too.
Why it matters now
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 | 5.4.251 to before 5.5; 5.10.188 to before 5.11 | 5.5, 5.11 | Patch available | CNA |
| Linux | Linux | 5.15 and later | 6.1.127, 6.6.64, 6.11.11, 6.12.2, 6.13 | Patch available | CNA |
- Linux VendorLinux Affected 5.4.251 to before 5.5; 5.10.188 to before 5.11 Fixed in 5.5, 5.11 Patch available CNA
- Linux VendorLinux Affected 5.15 and later Fixed in 6.1.127, 6.6.64, 6.11.11, 6.12.2, 6.13 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.4.251 to before 5.5; 5.10.188 to before 5.11; 5.15 to before 6.1.127; 6.2 to before 6.6.64; 6.7 to before 6.11.11; 6.12 to before 6.12.2 | Vulnerable | Linux |
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 5.4.251 to before 5.5; 5.10.188 to before 5.11; 5.15 to before 6.1.127; 6.2 to before 6.6.64; 6.7 to before 6.11.11; 6.12 to before 6.12.2 Vulnerable ·Linux
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.5, 5.11
- Fix · CNA Linux (Linux) Fixed in 6.1.127, 6.6.64, 6.11.11, 6.12.2, 6.13
Vendor assessments
Red Hat
Not affected: 4 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2024-53234
- 2026-10-03 Alias added: GHSA-hf8q-334g-vr2p
References
Patch 5
- https://git.kernel.org/stable/c/75a0a6dde803e7a3af700da8da9a361b49f69eba
- https://git.kernel.org/stable/c/f466641debcbea8bdf78d1b63a6270aadf9301bf
- https://git.kernel.org/stable/c/480c6c7b55aeacac800bc2a0d321ff53273045e5
- https://git.kernel.org/stable/c/daaf68fef4b2ff97928227630021d37b27a96655
- https://git.kernel.org/stable/c/0bc8061ffc733a0a246b8689b2d32a3e9204f43c
More Linux Kernel vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
- TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
Sources
- CVE-2024-53234 · CVE Program
- CVE-2024-53234 · NVD
- FIRST EPSS
- GHSA-hf8q-334g-vr2p · GitHub Advisory Database · CC BY 4.0
- CVE-2024-53234 · 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