acct: fix potential integer overflow in encode_comp_t() (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.28 % · centile 21 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Deferred
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Description
In the Linux kernel, the following vulnerability has been resolved: acct: fix potential integer overflow in encode_comp_t() The integer overflow is descripted with following codes: > 317 static comp_t encode_comp_t(u64 value) > 318 { > 319 int exp, rnd; ...... > 341 exp <<= MANTSIZE; > 342 exp += value; > 343 return exp; > 344 } Currently comp_t is defined as type of '__u16', but the variable 'exp' is type of 'int', so overflow would happen when variable 'exp' in line 343 is greater than 65535.
Références
- https://git.kernel.org/stable/c/e93f995a591c352d35d89c518c54f790e1537754
- https://git.kernel.org/stable/c/cf60bbca1b83a7e0927e36dbf178328982927886
- https://git.kernel.org/stable/c/1750a0983c455a9b3badd848471fc8d58cb61f67
- https://git.kernel.org/stable/c/a815a3e019456c94b03bd183e7ac22fd29e9e6fd
- https://git.kernel.org/stable/c/6edd0cdee5780fd5f43356b72b29a2a6d48ef6da
- https://git.kernel.org/stable/c/ebe16676e1dcaa4556ec4d36ca40c82e99e88cfa
- https://git.kernel.org/stable/c/2224897d8187dc22a83e05d9361efcccf67bcf12
- https://git.kernel.org/stable/c/0aac6e60c464a5f942f995428e67f8ae1c422250
- https://git.kernel.org/stable/c/c5f31c655bcc01b6da53b836ac951c1556245305
Références européennes
- ENISA EUVD · EUVD-2022-55812
- GCVE · GCVE-0-2022-50749
Avis du CERT-FR
- CERTFR-2026-AVI-0225 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0170 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0108 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e93f995a591c352d35d89c518c54f790e1537754 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cf60bbca1b83a7e0927e36dbf178328982927886 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1750a0983c455a9b3badd848471fc8d58cb61f67 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a815a3e019456c94b03bd183e7ac22fd29e9e6fd ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6edd0cdee5780fd5f43356b72b29a2a6d48ef6da ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ebe16676e1dcaa4556ec4d36ca40c82e99e88cfa |
| Linux · Linux | affected 2.6.12 ; unaffected 0 < 2.6.12 ; unaffected 4.9.337 ≤ 4.9.* ; unaffected 4.14.303 ≤ 4.14.* ; unaffected 4.19.270 ≤ 4.19.* ; unaffected 5.4.229 ≤ 5.4.* |
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 |