CVE-2024-56584
io_uring/tctx: work around xa_store() allocation error issue
MEDIUM 5.5
At a glance
- Source
- NVD
- EPSS
- EPSS 0.24 % · percentile 15 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: io_uring/tctx: work around xa_store() allocation error issue syzbot triggered the following WARN_ON: WARNING: CPU: 0 PID: 16 at io_uring/tctx.c:51 __io_uring_free+0xfa/0x140 io_uring/tctx.c:51 which is the WARN_ON_ONCE(!xa_empty(&tctx->xa)); sanity check in __io_uring_free() when a io_uring_task is going through its final put. The syzbot test case includes injecting memory allocation failures, and it very much looks like xa_store() can fail one of its memory allocations and end up with ->head being non-NULL even though no entries exist in the xarray. Until this issue gets sorted out, work around it by attempting to iterate entries in our xarray, and WARN_ON_ONCE() if one is found.
Weaknesses (CWE)
- CWE-770 — Allocation of Resources Without Limits or Throttling
References
- https://git.kernel.org/stable/c/e05c070b401f6365c503e2b59f091331965c4fb9
- https://git.kernel.org/stable/c/3a84fa784710990964c1e35df743851ab2863898
- https://git.kernel.org/stable/c/94ad56f61b873ffeebcc620d451eacfbdf9d40f0
- https://git.kernel.org/stable/c/42882b583095dcf747da6e3af1daeff40e27033e
- https://git.kernel.org/stable/c/d5b2ddf1f90c7248eff9630b95895c8950f2f36d
- https://git.kernel.org/stable/c/7eb75ce7527129d7f1fee6951566af409a37a1c4
- 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 | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2024-53232
- GCVE · GCVE-0-2024-56584
CERT-FR advisories
- CERTFR-2026-AVI-1229 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1093 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0985 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0954 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0926 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0696 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0326 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-0316 — Multiples vulnérabilités dans les produits VMware · 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-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:*:*:*:*:*:*:*:*≥ 5.1 < 6.1.120cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.66cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.12.5
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e < e05c070b401f6365c503e2b59f091331965c4fb9 ; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e < 3a84fa784710990964c1e35df743851ab2863898 ; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e < 94ad56f61b873ffeebcc620d451eacfbdf9d40f0 ; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e < 42882b583095dcf747da6e3af1daeff40e27033e ; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e < d5b2ddf1f90c7248eff9630b95895c8950f2f36d ; affected 2b188cc1bb857a9d4701ae59aa7768b5124e262e < 7eb75ce7527129d7f1fee6951566af409a37a1c4 |
| Linux · Linux | affected 5.1 ; unaffected 0 < 5.1 ; unaffected 5.10.253 ≤ 5.10.* ; unaffected 5.15.203 ≤ 5.15.* ; unaffected 6.1.120 ≤ 6.1.* ; unaffected 6.6.66 ≤ 6.6.* |
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 |