Description
In the Linux kernel, the following vulnerability has been resolved: mmc: via-sdmmc: fix return value check of mmc_add_host() mmc_add_host() may return error, if we ignore its return value, it will lead two issues: 1. The memory that allocated in mmc_alloc_host() is leaked. 2. In the remove() path, mmc_remove_host() will be called to delete device, but it's not added yet, it will lead a kernel crash because of null-ptr-deref in device_del(). Fix this by checking the return value and goto error path which will call mmc_free_host().
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
f0bf7f61b8405224bc52fc9a3ccd167a68126e00 to < 076bcd2c93e16b05c10564e299d6e5d26a766d00affectedf0bf7f61b8405224bc52fc9a3ccd167a68126e00 to < 12b8e81b77c05c658efd9cde3585bbd65ae39b59affectedf0bf7f61b8405224bc52fc9a3ccd167a68126e00 to < 95025a8dd0ec015872f6c16473fe04d6264e68caaffectedf0bf7f61b8405224bc52fc9a3ccd167a68126e00 to < f59ef2a47a228e51322ad76752a55a8917c56e38affectedf0bf7f61b8405224bc52fc9a3ccd167a68126e00 to < 63400da6cd37a9793c19bb6aed7131b58b975a04affectedf0bf7f61b8405224bc52fc9a3ccd167a68126e00 to < 0959cc1685eb19774300d43ef25e318b457b156baffectedf0bf7f61b8405224bc52fc9a3ccd167a68126e00 to < 0ec94795114edc7e24ec71849dce42bfa61dafa3affectedf0bf7f61b8405224bc52fc9a3ccd167a68126e00 to < ba91b413983a9235792523c6b9f7ba2586c4d75daffectedf0bf7f61b8405224bc52fc9a3ccd167a68126e00 to < e4e46fb61e3bb4628170810d3f2b996b709b90d9affected
Linux Linux
Default version status: affected
2.6.31affected0 to < 2.6.31unaffected4.9.337 to ≤ 4.9.*unaffected4.14.303 to ≤ 4.14.*unaffected4.19.270 to ≤ 4.19.*unaffected5.4.229 to ≤ 5.4.*unaffected5.10.163 to ≤ 5.10.*unaffected5.15.86 to ≤ 5.15.*unaffected6.0.16 to ≤ 6.0.*unaffected6.1.2 to ≤ 6.1.*unaffected6.2 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/076bcd2c93e16b05c10564e299d6e5d26a766d00 ↗
- https://git.kernel.org/stable/c/12b8e81b77c05c658efd9cde3585bbd65ae39b59 ↗
- https://git.kernel.org/stable/c/95025a8dd0ec015872f6c16473fe04d6264e68ca ↗
- https://git.kernel.org/stable/c/f59ef2a47a228e51322ad76752a55a8917c56e38 ↗
- https://git.kernel.org/stable/c/63400da6cd37a9793c19bb6aed7131b58b975a04 ↗
- https://git.kernel.org/stable/c/0959cc1685eb19774300d43ef25e318b457b156b ↗
- https://git.kernel.org/stable/c/0ec94795114edc7e24ec71849dce42bfa61dafa3 ↗
- https://git.kernel.org/stable/c/ba91b413983a9235792523c6b9f7ba2586c4d75d ↗
- https://git.kernel.org/stable/c/e4e46fb61e3bb4628170810d3f2b996b709b90d9 ↗