Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 to < 1e71b6449d55179170efc8dee8664510bb813b42affected89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 to < 3dd9be6cb55e0f47544e7cdda486413f7134e3b3affected89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 to < ec73e079729258a05452356cf6d098bf1504d5a6affected89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 to < 3fe0ac10bd117df847c93408a9d428a453cd60e5affected89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 to < 04a4a017b9ffd7b0f427b8c376688d14cb614651affected89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 to < 6fe478d855b20ac1eb5da724afe16af5a2aaaa40affected89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 to < 03505e3344b0576fd619416793a31eae9c5b73bfaffected89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 to < 810cd4bb53456d0503cc4e7934e063835152c1b7affected
Linux Linux
Default version status: affected
3.6affected0 to < 3.6unaffected5.4.274 to ≤ 5.4.*unaffected5.10.215 to ≤ 5.10.*unaffected5.15.154 to ≤ 5.15.*unaffected6.1.84 to ≤ 6.1.*unaffected6.6.24 to ≤ 6.6.*unaffected6.7.12 to ≤ 6.7.*unaffected6.8.3 to ≤ 6.8.*unaffected6.9 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/1e71b6449d55179170efc8dee8664510bb813b42 ↗
- https://git.kernel.org/stable/c/3dd9be6cb55e0f47544e7cdda486413f7134e3b3 ↗
- https://git.kernel.org/stable/c/ec73e079729258a05452356cf6d098bf1504d5a6 ↗
- https://git.kernel.org/stable/c/3fe0ac10bd117df847c93408a9d428a453cd60e5 ↗
- https://git.kernel.org/stable/c/04a4a017b9ffd7b0f427b8c376688d14cb614651 ↗
- https://git.kernel.org/stable/c/6fe478d855b20ac1eb5da724afe16af5a2aaaa40 ↗
- https://git.kernel.org/stable/c/03505e3344b0576fd619416793a31eae9c5b73bf ↗
- https://git.kernel.org/stable/c/810cd4bb53456d0503cc4e7934e063835152c1b7 ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html ↗