Bug 2266408 (CVE-2021-46909)
| Summary: | CVE-2021-46909 kernel: PCI interrupt mapping cause oops | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Rohit Keshri <rkeshri> |
| Component: | vulnerability | Assignee: | Product Security <prodsec-ir-bot> |
| Status: | CLOSED NOTABUG | QA Contact: | |
| Severity: | low | Docs Contact: | |
| Priority: | low | ||
| Version: | unspecified | CC: | acaringi, allarkin, aquini, bhu, chwhite, cye, cyin, dbohanno, debarbos, dfreiber, drow, dvlasenk, esandeen, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jforbes, jlelli, joe.lawrence, jshortt, jstancek, jwyatt, kcarcia, ldoskova, lgoncalv, lzampier, mleitner, mmilgram, mstowell, mstowe, nmurray, ptalbert, rparrazo, rrobaina, rvrbovsk, rysulliv, scweaver, sidakwo, sukulkar, tglozar, tyberry, vkumar, wcosta, williams, wmealing, ycote, ykopkova, zhijwang |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: |
A denial of service flaw was found in the ARM footbridge in the Linux Kernel. This issue may cause an oops if a PCI driver is loaded or bound after the kernel has initialized.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2024-02-27 20:58:10 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2266412 | ||
| Bug Blocks: | 2266369 | ||
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 2266412] This was fixed for Fedora with the 5.11.16 stable kernel updates. |
In the Linux kernel, the following vulnerability has been resolved: ARM: footbridge: fix PCI interrupt mapping Since commit 30fdfb929e82 ("PCI: Add a call to pci_assign_irq() in pci_device_probe()"), the PCI code will call the IRQ mapping function whenever a PCI driver is probed. If these are marked as __init, this causes an oops if a PCI driver is loaded or bound after the kernel has initialised. https://git.kernel.org/stable/c/1fc087fdb98d556b416c82ed6e3964a30885f47a https://git.kernel.org/stable/c/2643da6aa57920d9159a1a579fb04f89a2b0d29a https://git.kernel.org/stable/c/30e3b4f256b4e366a61658c294f6a21b8626dda7 https://git.kernel.org/stable/c/532747fd5c7aaa17ee5cf79f3e947c31eb0e35cf https://git.kernel.org/stable/c/871b569a3e67f570df9f5ba195444dc7c621293b https://git.kernel.org/stable/c/c3efce8cc9807339633ee30e39882f4c8626ee1d