Answer in brief
CVE-2026-89441 records a High severity (CVSS 7.8) vulnerability in mmc: via-sdmmc: cancel card-detect work on remove. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=f0bf7f61b8405224bc52fc9a3ccd167a68126e00 <f7ff3027ef004a331ef911a4886f12bc2e996037 || >=f0bf7f61b8405224bc52fc9a3ccd167a68126e00 <eaca730c6f5e3609df62a0469fb789235a93d276 || >=f0bf7f61b8405224bc52fc9a3ccd167a68126e00 <57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5 | f7ff3027ef004a331ef911a4886f12bc2e996037, eaca730c6f5e3609df62a0469fb789235a93d276, 57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5 |
| Linux/Linuxgeneric | >=f0bf7f61b8405224bc52fc9a3ccd167a68126e00 <0a3c70191868fb007c03ff79693ad4e4b3fdcbb8 || >=f0bf7f61b8405224bc52fc9a3ccd167a68126e00 <f7ff3027ef004a331ef911a4886f12bc2e996037 || >=f0bf7f61b8405224bc52fc9a3ccd167a68126e00 <eaca730c6f5e3609df62a0469fb789235a93d276 || >=f0bf7f61b8405224bc52fc9a3ccd167a68126e00 <57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5 | 0a3c70191868fb007c03ff79693ad4e4b3fdcbb8, f7ff3027ef004a331ef911a4886f12bc2e996037, eaca730c6f5e3609df62a0469fb789235a93d276, 57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5 |
| Linux/Linuxgeneric | 2.6.31 | Not reported |
| Linux/Linuxgeneric | >=f0bf7f61b8405224bc52fc9a3ccd167a68126e00 <55d71c70f11d9f92c7d2653774001e98cb509deb || >=f0bf7f61b8405224bc52fc9a3ccd167a68126e00 <0a3c70191868fb007c03ff79693ad4e4b3fdcbb8 || >=f0bf7f61b8405224bc52fc9a3ccd167a68126e00 <f7ff3027ef004a331ef911a4886f12bc2e996037 || >=f0bf7f61b8405224bc52fc9a3ccd167a68126e00 <eaca730c6f5e3609df62a0469fb789235a93d276 || >=f0bf7f61b8405224bc52fc9a3ccd167a68126e00 <57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5 | 55d71c70f11d9f92c7d2653774001e98cb509deb, 0a3c70191868fb007c03ff79693ad4e4b3fdcbb8, f7ff3027ef004a331ef911a4886f12bc2e996037, eaca730c6f5e3609df62a0469fb789235a93d276, 57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5 |
Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 11, 2026
In the Linux kernel, the following vulnerability has been resolved: mmc: via-sdmmc: cancel card-detect work on remove Disabling the device interrupt and freeing the IRQ prevents new card-detect work from being queued, but carddet_work already queued by the handler can still run after via_sd_remove() returns. via_sdc_card_detect() recovers the host through container_of() and dereferences its MMIO base; once remove() returns the host can be freed, so that work would touch freed memory. Cancel carddet_work after freeing the IRQ and before cancelling finish_bh_work, which the card-detect handler can also queue. carddet_work can re-enable the interrupt through via_reset_pcictrl(); mask it again afterwards. This issue was found by an in-house static analysis tool and confirmed by manual code review.
Quoted source text, attributed separately from HOL analysis.