Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Disable auto-enable of exclusive INTx IRQ Currently for devices requiring masking at the irqchip for INTx, ie. devices without DisINTx support, the IRQ is enabled in request_irq() and subsequently disabled as necessary to align with the masked status flag. This presents a window where the interrupt could fire between these events, resulting in the IRQ incrementing the disable depth twice. This would be unrecoverable for a user since the masked flag prevents nested enables through vfio. Instead, invert the logic using IRQF_NO_AUTOEN such that exclusive INTx is never auto-enabled, then unmask as required.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 before 26389925d6c2126fb777821a0a983adca7ee6351; affected 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 before 561d5e1998d58b54ce2bbbb3e843b669aa0b3db5; affected 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 before b7a2f0955ffceffadfe098b40b50307431f45438; affected 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 before 139dfcc4d723ab13469881200c7d80f49d776060; affected 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 before 2a4a666c45107206605b7b5bc20545f8aabc4fa2; affected 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 before 3b3491ad0f80d913e7d255941d4470f4a4d9bfda; affected 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 before bf0bc84a20e6109ab07d5dc072067bd01eb931ec; affected 89e1f7d4c66d85f42c3d52ea3866eb10cadf6153 before fe9a7082684eb059b925c535682e68c34d487d43 |
| Linux / Linux | affected 3.6; unaffected 0 before 3.6; unaffected 5.4.274 through 5.4.*; unaffected 5.10.215 through 5.10.*; unaffected 5.15.154 through 5.15.*; unaffected 6.1.84 through 6.1.*; unaffected 6.6.24 through 6.6.*; unaffected 6.7.12 through 6.7.*; unaffected 6.8.3 through 6.8.*; unaffected 6.9 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/26389925d6c2126fb777821a0a983adca7ee6351
- https://git.kernel.org/stable/c/561d5e1998d58b54ce2bbbb3e843b669aa0b3db5
- https://git.kernel.org/stable/c/b7a2f0955ffceffadfe098b40b50307431f45438
- https://git.kernel.org/stable/c/139dfcc4d723ab13469881200c7d80f49d776060
- https://git.kernel.org/stable/c/2a4a666c45107206605b7b5bc20545f8aabc4fa2
- https://git.kernel.org/stable/c/3b3491ad0f80d913e7d255941d4470f4a4d9bfda
- https://git.kernel.org/stable/c/bf0bc84a20e6109ab07d5dc072067bd01eb931ec
- https://git.kernel.org/stable/c/fe9a7082684eb059b925c535682e68c34d487d43
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/26389925d6c2126fb777821a0a983adca7ee6351
- https://git.kernel.org/stable/c/561d5e1998d58b54ce2bbbb3e843b669aa0b3db5
- https://git.kernel.org/stable/c/b7a2f0955ffceffadfe098b40b50307431f45438
- https://git.kernel.org/stable/c/139dfcc4d723ab13469881200c7d80f49d776060
- https://git.kernel.org/stable/c/2a4a666c45107206605b7b5bc20545f8aabc4fa2
- https://git.kernel.org/stable/c/3b3491ad0f80d913e7d255941d4470f4a4d9bfda
- https://git.kernel.org/stable/c/bf0bc84a20e6109ab07d5dc072067bd01eb931ec
- https://git.kernel.org/stable/c/fe9a7082684eb059b925c535682e68c34d487d43
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
No English description supplied.