CVE-2026-89845
CVE CVE-2026-89845EUVD EUVD-2026-80445Published 2026-09-16T10:31:19.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Avoid req_q_map double-read in qla2x00_error_entry() qla2x00_error_entry() reads ha->req_q_map[que] twice: once for the NULL check and again when assigning it to req. The map slot is cleared by qla25xx_free_req_que() (ha->req_q_map[que_id] = NULL under mq_lock) during queue teardown, while the response-queue interrupt that drives qla2x00_error_entry() is still registered (the IRQ is released later in qla25xx_free_rsp_que()). If the slot is set to NULL between the two reads, req becomes NULL and is dereferenced. Read the slot once into req and NULL-check the local before use. mq_lock is a mutex and cannot be taken from interrupt context, so the single read plus local check is the appropriate fix for the reported NULL dereference.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 6.1.188; patch: 6.12.110; patch: 6.18.51; a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b <c845f2597787ef70159a32566669e308b2807a56; a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b <1c90b74e484ba48f31944fe04963d99e01ac3767; a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b <fe04b31e386aee4cc3a18f07462af146037dc389; a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b <deb8abde83a799d2501f3977f6d6051000253f5e; patch: 7.3-rc1; patch: 0; a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b <1b995cf4157465357d66ba096e7cdaafab9972e7; patch: 5.15.221; patch: 7.2.5; patch: 6.6.157; a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b <d79376fbd2a076de82c1cd8aa0b600b300c75a44; patch: 5.10.270; 3.4; a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b <5dd9bec8004ba93cee8b689bf54ce294f59e5e3c; a6fe35c052c4fdd1e8e21251f14eea0bd4bbd25b <35124cfa9898b2088ee72859e573e0876aff66fc
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
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