misc: fastrpc: Fix use-after-free race condition for maps (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.24 % · percentile 16 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: Fix use-after-free race condition for maps It is possible that in between calling fastrpc_map_get() until map->fl->lock is taken in fastrpc_free_map(), another thread can call fastrpc_map_lookup() and get a reference to a map that is about to be deleted. Rewrite fastrpc_map_get() to only increase the reference count of a map if it's non-zero. Propagate this to callers so they can know if a map is about to be deleted. Fixes this warning: refcount_t: addition on 0; use-after-free. WARNING: CPU: 5 PID: 10100 at lib/refcount.c:25 refcount_warn_saturate ... Call trace: refcount_warn_saturate [fastrpc_map_get inlined] [fastrpc_map_lookup inlined] fastrpc_map_create fastrpc_internal_invoke fastrpc_device_ioctl __arm64_sys_ioctl invoke_syscall
Weaknesses (CWE)
- CWE-416 — Use After Free
References
- https://git.kernel.org/stable/c/556dfdb226ce1e5231d8836159b23f8bb0395bf4
- https://git.kernel.org/stable/c/b171d0d2cf1b8387c72c8d325c5d5746fa271e39
- https://git.kernel.org/stable/c/61a0890cb95afec5c8a2f4a879de2b6220984ef1
- https://git.kernel.org/stable/c/079c78c68714f7d8d58e66c477b0243b31806907
- https://git.kernel.org/stable/c/96b328d119eca7563c1edcc4e1039a62e6370ecb
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 | Linux |
| 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 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| CVSS 3.1 | HIGH 7.0 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2022-53751
- GCVE · GCVE-0-2022-48872
CERT-FR advisories
- CERTFR-2024-AVI-0840 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0822 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0800 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0779 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.1 < 5.4.230cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.165cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.90cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.2cpe:2.3:o:linux:linux_kernel:6.2:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.2:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.2:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.2:rc4:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 < 556dfdb226ce1e5231d8836159b23f8bb0395bf4 ; affected c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 < b171d0d2cf1b8387c72c8d325c5d5746fa271e39 ; affected c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 < 61a0890cb95afec5c8a2f4a879de2b6220984ef1 ; affected c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 < 079c78c68714f7d8d58e66c477b0243b31806907 ; affected c68cfb718c8f97b7f7a50ed66be5feb42d0c8988 < 96b328d119eca7563c1edcc4e1039a62e6370ecb |
| Linux · Linux | affected 5.1 ; unaffected 0 < 5.1 ; unaffected 5.4.230 ≤ 5.4.* ; unaffected 5.10.165 ≤ 5.10.* ; unaffected 5.15.90 ≤ 5.15.* ; unaffected 6.1.8 ≤ 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 |