Description
In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode() With ACPI in place, gicv2m_get_fwnode() is registered with the pci subsystem as pci_msi_get_fwnode_cb(), which may get invoked at runtime during a PCI host bridge probe. But, the call back is wrongly marked as __init, causing it to be freed, while being registered with the PCI subsystem and could trigger: Unable to handle kernel paging request at virtual address ffff8000816c0400 gicv2m_get_fwnode+0x0/0x58 (P) pci_set_bus_msi_domain+0x74/0x88 pci_register_host_bridge+0x194/0x548 This is easily reproducible on a Juno board with ACPI boot. Retain the function for later use.
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
0644b3daca28dcb320373ae20069c269c9386304 to < 0c241dedc43a036599757cd08f356253fa3e5014affected0644b3daca28dcb320373ae20069c269c9386304 to < b63de43af8d215b0499eac28b2caa4439183efc1affected0644b3daca28dcb320373ae20069c269c9386304 to < f95659affee301464f0d058d528d96b35b452da8affected0644b3daca28dcb320373ae20069c269c9386304 to < dc0d654eb4179b06d3206e4396d072108b9ba082affected0644b3daca28dcb320373ae20069c269c9386304 to < 2f2803e4b5e4df2b08d378deaab78b1681ef9b30affected0644b3daca28dcb320373ae20069c269c9386304 to < 3939d6f29d34cdb60e3f68b76e39e00a964a1d51affected0644b3daca28dcb320373ae20069c269c9386304 to < 47bee0081b483b077c7560bc5358ad101f89c8efaffected0644b3daca28dcb320373ae20069c269c9386304 to < 3318dc299b072a0511d6dfd8367f3304fb6d9827affected
Linux Linux
Default version status: affected
4.5affected0 to < 4.5unaffected5.4.294 to ≤ 5.4.*unaffected5.10.238 to ≤ 5.10.*unaffected5.15.182 to ≤ 5.15.*unaffected6.1.138 to ≤ 6.1.*unaffected6.6.89 to ≤ 6.6.*unaffected6.12.26 to ≤ 6.12.*unaffected6.14.5 to ≤ 6.14.*unaffected6.15 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/0c241dedc43a036599757cd08f356253fa3e5014 ↗
- https://git.kernel.org/stable/c/b63de43af8d215b0499eac28b2caa4439183efc1 ↗
- https://git.kernel.org/stable/c/f95659affee301464f0d058d528d96b35b452da8 ↗
- https://git.kernel.org/stable/c/dc0d654eb4179b06d3206e4396d072108b9ba082 ↗
- https://git.kernel.org/stable/c/2f2803e4b5e4df2b08d378deaab78b1681ef9b30 ↗
- https://git.kernel.org/stable/c/3939d6f29d34cdb60e3f68b76e39e00a964a1d51 ↗
- https://git.kernel.org/stable/c/47bee0081b483b077c7560bc5358ad101f89c8ef ↗
- https://git.kernel.org/stable/c/3318dc299b072a0511d6dfd8367f3304fb6d9827 ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html ↗
- https://lists.debian.org/debian-lts-announce/2025/08/msg00010.html ↗