CVE-2024-26838

RDMA/irdma: Fix KASAN issue with tasklet

MEDIUM

5.5

CVSS Score

Published: April 17, 2024 at 10:10 AM UTC

Updated: August 5, 2026 at 12:04 PM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

SSVC

No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

5.14 ≤ v < 5.15.1505.14 ≤ v < 6.1.805.14 ≤ v < 6.6.195.14 ≤ v < 6.7.75.14 ≤ v < 6.85.16 ≤ v < 6.1.806.2 ≤ v < 6.6.196.7 ≤ v < 6.7.744d9e52977a1b90b0db1c7f8b197c218e92265206.8 rc1 6.8 rc2 6.8 rc3 6.8 rc4 6.8 rc5

Vendor states this is fixed in 0ae8ad0013978f7471f22bcf45b027393e87f5dc (fixed)

Vendor states this is fixed in 635d79aa477f9912e602feb5498bdd51fb9cb824 (fixed)

Vendor states this is fixed in b2e4a5266e3d133b4c7f0e43bf40d13ce14fd1aa (fixed)

Vendor states this is fixed in bd97cea7b18a0a553773af806dfbfac27a7c4acb (fixed)

Vendor states this is fixed in c6f1ca235f68b22b3e691b2ea87ac285e5946848 (fixed)

Vendor states this is fixed in 5.14 (unaffected)

Vendor states this is fixed in 5.15.150 (unaffected)

Vendor states this is fixed in 6.1.80 (unaffected)

Vendor states this is fixed in 6.6.19 (unaffected)

Vendor states this is fixed in 6.7.7 (unaffected)

Vendor states this is fixed in 6.8 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references