In the Linux kernel, the following vulnerability has been resolved:

9p/xen: fix release of IRQ

Kernel logs indicate an IRQ was double-freed.

Pass correct device ID during IRQ release.

[Dominique: remove confusing variable reset to 0]

References

• https://nvd.nist.gov/vuln/detail/CVE-2024-56704
• https://git.kernel.org/stable/c/2bb3ee1bf237557daea1d58007d2e1d4a6502ccf
• https://git.kernel.org/stable/c/4950408793b118cb8075bcee1f033b543fb719fa
• https://git.kernel.org/stable/c/530bc9f03a102fac95b07cda513bfc16ff69e0ee
• https://git.kernel.org/stable/c/692eb06703afc3e24d889d77e94a0e20229f6a4a
• https://git.kernel.org/stable/c/7f5a2ed5c1810661e6b03f5a4ebf17682cdea850
• https://git.kernel.org/stable/c/b9e26059664bd9ebc64a0e8f5216266fc9f84265
• https://git.kernel.org/stable/c/d74b4b297097bd361b8a9abfde9b521ff464ea9c
• https://git.kernel.org/stable/c/d888f5f5d76b2722c267e6bdf51d445d60647b7b
• https://git.kernel.org/stable/c/e43c608f40c065b30964f0a806348062991b802d