Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: KVM: Move kvm_io_bus_get_dev() locking responsibilities to callers kvm_io_bus_get_dev() returns a device that is only matched by the address, and nothing else. This can cause a lifetime issue if the matched device is not the expected type, as by the time the caller can introspect the object, it might be gone (the srcu lock having been dropped). Given that there is only a single user of this helper, the simplest option is to move the locking responsibility to the caller, which can keep the srcu lock held for as long as it wants. Note that this aligns with other kvm_io_bus*() helpers, which already require the srcu lock to be held by the callers.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 8a39d00670f0792c1186e442e1dd28fe0326f2ee before f398b7d92cd999191249830b9171c9bd787a9a91; affected 8a39d00670f0792c1186e442e1dd28fe0326f2ee before 1b4a3c2f0509e7b0e65667f3c36676a849ee2755; affected 8a39d00670f0792c1186e442e1dd28fe0326f2ee before cfe107b02a3c3f049e0dc15b6a36625f048eda2a; affected 8a39d00670f0792c1186e442e1dd28fe0326f2ee before 90d35d2b8e47afd68fe2a4dd0eeb60bc71641775; affected 8a39d00670f0792c1186e442e1dd28fe0326f2ee before e01071ea006c9b952125ed8b0cc90ac7bd356cce; affected 8a39d00670f0792c1186e442e1dd28fe0326f2ee before 7099e7148f81c605bbc319b16ce0131540341560; affected 8a39d00670f0792c1186e442e1dd28fe0326f2ee before 0cbae0e296d27ce4c4cce83e34d40c2bfd8133aa; affected 8a39d00670f0792c1186e442e1dd28fe0326f2ee before 3a07249981629ace483ebbef81ef6b34c2d2afec |
| Linux / Linux | affected 4.8; unaffected 0 before 4.8; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/f398b7d92cd999191249830b9171c9bd787a9a91
- https://git.kernel.org/stable/c/1b4a3c2f0509e7b0e65667f3c36676a849ee2755
- https://git.kernel.org/stable/c/cfe107b02a3c3f049e0dc15b6a36625f048eda2a
- https://git.kernel.org/stable/c/90d35d2b8e47afd68fe2a4dd0eeb60bc71641775
- https://git.kernel.org/stable/c/e01071ea006c9b952125ed8b0cc90ac7bd356cce
- https://git.kernel.org/stable/c/7099e7148f81c605bbc319b16ce0131540341560
- https://git.kernel.org/stable/c/0cbae0e296d27ce4c4cce83e34d40c2bfd8133aa
- https://git.kernel.org/stable/c/3a07249981629ace483ebbef81ef6b34c2d2afec
ADP enrichment
No English description supplied.
No references supplied.