CVE-2026-89440
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
mmc: via-sdmmc: stop card-detect handling on probe failure
In the Linux kernel, the following vulnerability has been resolved: mmc: via-sdmmc: stop card-detect handling on probe failure request_irq() registers the SD card-detect interrupt and the probe enables it before mmc_add_host() runs. If mmc_add_host() fails, the error path only unmaps the registers and returns: the interrupt stays registered, so the handler keeps running against the host once it is freed. via_sdc_isr() dereferences sdhost and its MMIO base and schedules carddet_work, which via_sdc_card_detect() also runs against freed memory through its container_of() dereference. Add a probe-error path that disables and frees the interrupt and cancels carddet_work before unmapping. carddet_work can re-enable the device interrupt via via_reset_pcictrl(), which restores PCIINTCTRL, so mask it again after cancelling the work. This issue was found by an in-house static analysis tool and confirmed by manual code review.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 63400da6cd37a9793c19bb6aed7131b58b975a04 | affected | git | 5bb5327b92aae17e91c7228953c350a6ee3c94e8 | Unavailable | None listed |
| 0959cc1685eb19774300d43ef25e318b457b156b | affected | git | d045596706d1b25d38af4a79980b017639fea9d1 | Unavailable | None listed |
| ba91b413983a9235792523c6b9f7ba2586c4d75d | affected | git | 806409f12fdb14c9e4c56a64494c9b75f356cd49 | Unavailable | None listed |
| e4e46fb61e3bb4628170810d3f2b996b709b90d9 | affected | git | dde5b9c91e9fc64e54a2f186d3ae95868b4dbb02 | Unavailable | None listed |
| e4e46fb61e3bb4628170810d3f2b996b709b90d9 | affected | git | efe7f25dd27e35063477b4b0e7eed3675669fd99 | Unavailable | None listed |
| e4e46fb61e3bb4628170810d3f2b996b709b90d9 | affected | git | 2550f89589caad7402d618d7dffc038582c94b6b | Unavailable | None listed |
| e4e46fb61e3bb4628170810d3f2b996b709b90d9 | affected | git | c2b8a624911999399cc14822fec3e35032b3cee4 | Unavailable | None listed |
| e4e46fb61e3bb4628170810d3f2b996b709b90d9 | affected | git | 088eaa92fcebaa6b957ccf9635afdf39643a577d | Unavailable | None listed |
| 076bcd2c93e16b05c10564e299d6e5d26a766d00 | affected | git | Unavailable | Unavailable | None listed |
| 12b8e81b77c05c658efd9cde3585bbd65ae39b59 | affected | git | Unavailable | Unavailable | None listed |
| 95025a8dd0ec015872f6c16473fe04d6264e68ca | affected | git | Unavailable | Unavailable | None listed |
| f59ef2a47a228e51322ad76752a55a8917c56e38 | affected | git | Unavailable | Unavailable | None listed |
| 0ec94795114edc7e24ec71849dce42bfa61dafa3 | affected | git | Unavailable | Unavailable | None listed |
| 5.10.163 | affected | semver | 5.10.270 | Unavailable | None listed |
| 5.15.86 | affected | semver | 5.15.221 | Unavailable | None listed |
| 6.1.2 | affected | semver | 6.1.188 | Unavailable | None listed |
| 4.9.337 | affected | semver | 4.10 | Unavailable | None listed |
| 4.14.303 | affected | semver | 4.15 | Unavailable | None listed |
| 4.19.270 | affected | semver | 4.20 | Unavailable | None listed |
| 5.4.229 | affected | semver | 5.5 | Unavailable | None listed |
| 6.0.16 | affected | semver | 6.1 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.2 | Unavailable | None listed |
| 5.10.270 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.221 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.109 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.50 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.4 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |