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Red Hat: CVE-2024-26838: kernel: RDMA/irdma: Fix KASAN issue with tasklet (Multiple Advisories)

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Red Hat: CVE-2024-26838: kernel: RDMA/irdma: Fix KASAN issue with tasklet (Multiple Advisories)

Severity
4
CVSS
(AV:L/AC:L/Au:M/C:N/I:N/A:C)
Published
04/17/2024
Created
12/06/2024
Added
12/05/2024
Modified
12/05/2024

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Fix KASAN issue with tasklet KASAN testing revealed the following issue assocated with freeing an IRQ. [50006.466686] Call Trace: [50006.466691]<IRQ> [50006.489538]dump_stack+0x5c/0x80 [50006.493475]print_address_description.constprop.6+0x1a/0x150 [50006.499872]? irdma_sc_process_ceq+0x483/0x790 [irdma] [50006.505742]? irdma_sc_process_ceq+0x483/0x790 [irdma] [50006.511644]kasan_report.cold.11+0x7f/0x118 [50006.516572]? irdma_sc_process_ceq+0x483/0x790 [irdma] [50006.522473]irdma_sc_process_ceq+0x483/0x790 [irdma] [50006.528232]irdma_process_ceq+0xb2/0x400 [irdma] [50006.533601]? irdma_hw_flush_wqes_callback+0x370/0x370 [irdma] [50006.540298]irdma_ceq_dpc+0x44/0x100 [irdma] [50006.545306]tasklet_action_common.isra.14+0x148/0x2c0 [50006.551096]__do_softirq+0x1d0/0xaf8 [50006.555396]irq_exit_rcu+0x219/0x260 [50006.559670]irq_exit+0xa/0x20 [50006.563320]smp_apic_timer_interrupt+0x1bf/0x690 [50006.568645]apic_timer_interrupt+0xf/0x20 [50006.573341]</IRQ> The issue is that a tasklet could be pending on another core racing the delete of the irq. Fix by insuring any scheduled tasklet is killed after deleting the irq.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2024-26838
  • RHSA-2024:9315
  • 查看数 710
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