dax: Fix dax_mapping_release() use after free (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.15 % · percentile 4 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: dax: Fix dax_mapping_release() use after free A CONFIG_DEBUG_KOBJECT_RELEASE test of removing a device-dax region provider (like modprobe -r dax_hmem) yields: kobject: 'mapping0' (ffff93eb460e8800): kobject_release, parent 0000000000000000 (delayed 2000) [..] DEBUG_LOCKS_WARN_ON(1) WARNING: CPU: 23 PID: 282 at kernel/locking/lockdep.c:232 __lock_acquire+0x9fc/0x2260 [..] RIP: 0010:__lock_acquire+0x9fc/0x2260 [..] Call Trace: <TASK> [..] lock_acquire+0xd4/0x2c0 ? ida_free+0x62/0x130 _raw_spin_lock_irqsave+0x47/0x70 ? ida_free+0x62/0x130 ida_free+0x62/0x130 dax_mapping_release+0x1f/0x30 device_release+0x36/0x90 kobject_delayed_cleanup+0x46/0x150 Due to attempting ida_free() on an ida object that has already been freed. Devices typically only hold a reference on their parent while registered. If a child needs a parent object to complete its release it needs to hold a reference that it drops from its release callback. Arrange for a dax_mapping to pin its parent dev_dax instance until dax_mapping_release().
Weaknesses (CWE)
- CWE-416 — Use After Free
References
- https://git.kernel.org/stable/c/94a85474f5e3e518bdbf8c9f51cb343d734a04f7
- https://git.kernel.org/stable/c/9c2f993b6ca903c030d58451b5bf9ea27d0d17fa
- https://git.kernel.org/stable/c/03859868ab82d57bfdd0cea1bf31f9319a5dded0
- https://git.kernel.org/stable/c/f76db6781d76d8464ec2faa9752cc3fb2e4f6923
- https://git.kernel.org/stable/c/7310b84821f043dcf77d5e6aa0ad55dc1e10a11d
- https://git.kernel.org/stable/c/6d24b170a9db0456f577b1ab01226a2254c016a8
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2025-32281
- GCVE · GCVE-0-2023-53613
CERT-FR advisories
- CERTFR-2025-AVI-1073 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1047 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1032 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1009 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.10 < 5.10.188cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.121cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.39cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.3.13cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.4 < 6.4.4
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 0b07ce872a9eca1ff88c0eb7f6e92dde127d21ca < 94a85474f5e3e518bdbf8c9f51cb343d734a04f7 ; affected 0b07ce872a9eca1ff88c0eb7f6e92dde127d21ca < 9c2f993b6ca903c030d58451b5bf9ea27d0d17fa ; affected 0b07ce872a9eca1ff88c0eb7f6e92dde127d21ca < 03859868ab82d57bfdd0cea1bf31f9319a5dded0 ; affected 0b07ce872a9eca1ff88c0eb7f6e92dde127d21ca < f76db6781d76d8464ec2faa9752cc3fb2e4f6923 ; affected 0b07ce872a9eca1ff88c0eb7f6e92dde127d21ca < 7310b84821f043dcf77d5e6aa0ad55dc1e10a11d ; affected 0b07ce872a9eca1ff88c0eb7f6e92dde127d21ca < 6d24b170a9db0456f577b1ab01226a2254c016a8 |
| Linux · Linux | affected 5.10 ; unaffected 0 < 5.10 ; unaffected 5.10.188 ≤ 5.10.* ; unaffected 5.15.121 ≤ 5.15.* ; unaffected 6.1.39 ≤ 6.1.* ; unaffected 6.3.13 ≤ 6.3.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |