bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.26 % · percentile 18 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again Commit 028ddcac477b ("bcache: Remove unnecessary NULL point check in node allocations") leads a NULL pointer deference in cache_set_flush(). 1721 if (!IS_ERR_OR_NULL(c->root)) 1722 list_add(&c->root->list, &c->btree_cache); >From the above code in cache_set_flush(), if previous registration code fails before allocating c->root, it is possible c->root is NULL as what it is initialized. __bch_btree_node_alloc() never returns NULL but c->root is possible to be NULL at above line 1721. This patch replaces IS_ERR() by IS_ERR_OR_NULL() to fix this.
Weaknesses (CWE)
- CWE-476 — NULL Pointer Dereference
References
- https://git.kernel.org/stable/c/4379c5828492a4c2a651c8f826a01453bd2b80b0
- https://git.kernel.org/stable/c/336e30f32ae7c043fde0f6fa21586ff30bea9fe2
- https://git.kernel.org/stable/c/fb5fee35bdd18316a84b5f30881a24e1415e1464
- https://git.kernel.org/stable/c/5202391970ffbf81975251b3526b890ba027b715
- https://git.kernel.org/stable/c/cc05aa2c0117e20fa25a3c0d915f98b8f2e78667
- https://git.kernel.org/stable/c/5e0e913624bcd24f3de414475018d3023f060ee1
- https://git.kernel.org/stable/c/b2e382ae12a63560fca35050498e19e760adf8c0
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-355557.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2024-43251
- GCVE · GCVE-0-2024-48881
CERT-FR advisories
- CERTFR-2025-AVI-0677 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0366 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0349 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0308 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0276 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0254 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0184 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0151 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0133 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0088 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.19.291 < 4.20cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.4.251 < 5.4.287cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.10.188 < 5.10.231cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.15.121 < 5.15.174cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.1.39 < 6.1.120cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.4.4 < 6.6.66cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.12.5cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 0729029e647234fa1a94376b6edffec5c2cd75f6 < 4379c5828492a4c2a651c8f826a01453bd2b80b0 ; affected db9439cef0b5efccf8021fe89f4953e0f901e85b < 336e30f32ae7c043fde0f6fa21586ff30bea9fe2 ; affected 991e9c186a8ac6ab272a86e0ddc6f9733c38b867 < fb5fee35bdd18316a84b5f30881a24e1415e1464 ; affected 68118c339c6e1e16ae017bef160dbe28a27ae9c8 < 5202391970ffbf81975251b3526b890ba027b715 ; affected 028ddcac477b691dd9205c92f991cc15259d033e < cc05aa2c0117e20fa25a3c0d915f98b8f2e78667 ; affected 028ddcac477b691dd9205c92f991cc15259d033e < 5e0e913624bcd24f3de414475018d3023f060ee1 |
| Linux · Linux | affected 6.5 ; unaffected 0 < 6.5 ; unaffected 5.4.287 ≤ 5.4.* ; unaffected 5.10.231 ≤ 5.10.* ; unaffected 5.15.174 ≤ 5.15.* ; unaffected 6.1.120 ≤ 6.1.* |
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 |