unicode: Fix utf8_load() error path (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.22 % · percentile 13 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: unicode: Fix utf8_load() error path utf8_load() requests the symbol "utf8_data_table" and then checks if the requested UTF-8 version is supported. If it's unsupported, it tries to put the data table using symbol_put(). If an unsupported version is requested, symbol_put() fails like this: kernel BUG at kernel/module/main.c:786! RIP: 0010:__symbol_put+0x93/0xb0 Call Trace: <TASK> ? __die_body.cold+0x19/0x27 ? die+0x2e/0x50 ? do_trap+0xca/0x110 ? do_error_trap+0x65/0x80 ? __symbol_put+0x93/0xb0 ? exc_invalid_op+0x51/0x70 ? __symbol_put+0x93/0xb0 ? asm_exc_invalid_op+0x1a/0x20 ? __pfx_cmp_name+0x10/0x10 ? __symbol_put+0x93/0xb0 ? __symbol_put+0x62/0xb0 utf8_load+0xf8/0x150 That happens because symbol_put() expects the unique string that identify the symbol, instead of a pointer to the loaded symbol. Fix that by using such string.
Weaknesses (CWE)
- CWE-476 — NULL Pointer Dereference
References
- https://git.kernel.org/stable/c/4387cef540f36c2c9297460758cc2438305a24a0
- https://git.kernel.org/stable/c/c4b6c1781f6cc4e2283120ac8d873864b8056f21
- https://git.kernel.org/stable/c/6504dd27123966dc455494cb55217c04ca479121
- https://git.kernel.org/stable/c/89933f8ab3b4cad5ac14ea56a39947d1ffe7d0e3
- https://git.kernel.org/stable/c/156bb2c569cd869583c593d27a5bd69e7b2a4264
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.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-2024-51905
- GCVE · GCVE-0-2024-53233
CERT-FR advisories
- 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-0185 — 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-0152 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · 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:*:*:*:*:*:*:*:*≥ 5.17 < 6.1.120cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.64cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.11.11cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.12 < 6.12.2
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 2b3d047870120bcd46d7cc257d19ff49328fd585 < 4387cef540f36c2c9297460758cc2438305a24a0 ; affected 2b3d047870120bcd46d7cc257d19ff49328fd585 < c4b6c1781f6cc4e2283120ac8d873864b8056f21 ; affected 2b3d047870120bcd46d7cc257d19ff49328fd585 < 6504dd27123966dc455494cb55217c04ca479121 ; affected 2b3d047870120bcd46d7cc257d19ff49328fd585 < 89933f8ab3b4cad5ac14ea56a39947d1ffe7d0e3 ; affected 2b3d047870120bcd46d7cc257d19ff49328fd585 < 156bb2c569cd869583c593d27a5bd69e7b2a4264 |
| Linux · Linux | affected 5.17 ; unaffected 0 < 5.17 ; unaffected 6.1.120 ≤ 6.1.* ; unaffected 6.6.64 ≤ 6.6.* ; unaffected 6.11.11 ≤ 6.11.* ; unaffected 6.12.2 ≤ 6.12.* |
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 |