Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 63400da6cd37a9793c19bb6aed7131b58b975a04 before 5bb5327b92aae17e91c7228953c350a6ee3c94e8; affected 0959cc1685eb19774300d43ef25e318b457b156b before d045596706d1b25d38af4a79980b017639fea9d1; affected ba91b413983a9235792523c6b9f7ba2586c4d75d before 806409f12fdb14c9e4c56a64494c9b75f356cd49; affected e4e46fb61e3bb4628170810d3f2b996b709b90d9 before dde5b9c91e9fc64e54a2f186d3ae95868b4dbb02; affected e4e46fb61e3bb4628170810d3f2b996b709b90d9 before efe7f25dd27e35063477b4b0e7eed3675669fd99; affected e4e46fb61e3bb4628170810d3f2b996b709b90d9 before 2550f89589caad7402d618d7dffc038582c94b6b; affected e4e46fb61e3bb4628170810d3f2b996b709b90d9 before c2b8a624911999399cc14822fec3e35032b3cee4; affected e4e46fb61e3bb4628170810d3f2b996b709b90d9 before 088eaa92fcebaa6b957ccf9635afdf39643a577d; affected 076bcd2c93e16b05c10564e299d6e5d26a766d00; affected 12b8e81b77c05c658efd9cde3585bbd65ae39b59; affected 95025a8dd0ec015872f6c16473fe04d6264e68ca; affected f59ef2a47a228e51322ad76752a55a8917c56e38; affected 0ec94795114edc7e24ec71849dce42bfa61dafa3; affected 5.10.163 before 5.10.270; affected 5.15.86 before 5.15.221; affected 6.1.2 before 6.1.188; affected 4.9.337 before 4.10; affected 4.14.303 before 4.15; affected 4.19.270 before 4.20; affected 5.4.229 before 5.5; affected 6.0.16 before 6.1 |
| Linux / Linux | affected 6.2; unaffected 0 before 6.2; unaffected 5.10.270 through 5.10.*; unaffected 5.15.221 through 5.15.*; unaffected 6.1.188 through 6.1.*; unaffected 6.6.157 through 6.6.*; unaffected 6.12.109 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/5bb5327b92aae17e91c7228953c350a6ee3c94e8
- https://git.kernel.org/stable/c/d045596706d1b25d38af4a79980b017639fea9d1
- https://git.kernel.org/stable/c/806409f12fdb14c9e4c56a64494c9b75f356cd49
- https://git.kernel.org/stable/c/dde5b9c91e9fc64e54a2f186d3ae95868b4dbb02
- https://git.kernel.org/stable/c/efe7f25dd27e35063477b4b0e7eed3675669fd99
- https://git.kernel.org/stable/c/2550f89589caad7402d618d7dffc038582c94b6b
- https://git.kernel.org/stable/c/c2b8a624911999399cc14822fec3e35032b3cee4
- https://git.kernel.org/stable/c/088eaa92fcebaa6b957ccf9635afdf39643a577d