Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f0bf7f61b8405224bc52fc9a3ccd167a68126e00 before 55d71c70f11d9f92c7d2653774001e98cb509deb; affected f0bf7f61b8405224bc52fc9a3ccd167a68126e00 before 0a3c70191868fb007c03ff79693ad4e4b3fdcbb8; affected f0bf7f61b8405224bc52fc9a3ccd167a68126e00 before f7ff3027ef004a331ef911a4886f12bc2e996037; affected f0bf7f61b8405224bc52fc9a3ccd167a68126e00 before eaca730c6f5e3609df62a0469fb789235a93d276; affected f0bf7f61b8405224bc52fc9a3ccd167a68126e00 before 57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5 |
| Linux / Linux | affected 2.6.31; unaffected 0 before 2.6.31; unaffected 6.6.160 through 6.6.*; unaffected 6.12.112 through 6.12.*; unaffected 6.18.50 through 6.18.*; unaffected 7.2.4 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/55d71c70f11d9f92c7d2653774001e98cb509deb
- https://git.kernel.org/stable/c/0a3c70191868fb007c03ff79693ad4e4b3fdcbb8
- https://git.kernel.org/stable/c/f7ff3027ef004a331ef911a4886f12bc2e996037
- https://git.kernel.org/stable/c/eaca730c6f5e3609df62a0469fb789235a93d276
- https://git.kernel.org/stable/c/57e5d877f898d5e5c9d672a77bb6bdd24f0d9bf5
ADP enrichment
No English description supplied.
No references supplied.