CVE-2024-26810vfio/pci: Lock external INTx masking ops
Updated under an hour ago ()
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It affects Linux and 2 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Lock external INTx masking ops Mask operations through config space changes to DisINTx may race INTx configuration changes via ioctl. Create wrappers that add locking for paths outside of the core interrupt code. In particular, irq_type is updated holding igate, therefore testing is_intx() requires holding igate. For example clearing DisINTx from config space can otherwise race changes of the interrupt configuration. This aligns interfaces which may trigger the INTx eventfd into two camps, one side serialized by igate and the other only enabled while INTx is configured. A subsequent patch introduces synchronization for the latter flows.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 builds before 1e71b6449d55179170efc8dee8664510bb813b42; 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 builds before 3dd9be6cb55e0f47544e7cdda486413f7134e3b3; from 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 before ec73e079729258a05452356cf6d098bf1504d5a6; 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 builds before 3fe0ac10bd117df847c93408a9d428a453cd60e5; 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 builds before 04a4a017b9ffd7b0f427b8c376688d14cb614651; 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 builds before 6fe478d855b20ac1eb5da724afe16af5a2aaaa40; from 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 before 03505e3344b0576fd619416793a31eae9c5b73bf; from 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 before 810cd4bb53456d0503cc4e7934e063835152c1b7 | CNA record |
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem siemens:simatic_s7_1500_tm_mfp_gnu_linux_subsystem (from the name) | before V1.1.1 | CISA ADP |
linux linux_kernel linux:linux_kernel | from 3.6 before 5.4.274; from 5.5 before 5.10.215; from 5.11 before 5.15.154; from 5.16 before 6.1.84; from 6.2 before 6.6.24; from 6.7 before 6.7.12; from 6.8 before 6.8.3 | NVD |
References
- https://git.kernel.org/stable/c/1e71b6449d55179170efc8dee8664510bb813b42patch
- https://git.kernel.org/stable/c/3dd9be6cb55e0f47544e7cdda486413f7134e3b3patch
- https://git.kernel.org/stable/c/ec73e079729258a05452356cf6d098bf1504d5a6patch
- https://git.kernel.org/stable/c/3fe0ac10bd117df847c93408a9d428a453cd60e5patch
- https://git.kernel.org/stable/c/04a4a017b9ffd7b0f427b8c376688d14cb614651patch
- https://git.kernel.org/stable/c/6fe478d855b20ac1eb5da724afe16af5a2aaaa40patch
- https://git.kernel.org/stable/c/03505e3344b0576fd619416793a31eae9c5b73bfpatch
- https://git.kernel.org/stable/c/810cd4bb53456d0503cc4e7934e063835152c1b7patch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlmailing-list, third-party-advisory
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.