Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: mmc: meson-gx: 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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 51c5d8447bd71b7e539c19c46a03b73c0e91fa66 before f5506e0bbb25102bd8ef2e1a3b483a0b934e454e; affected 51c5d8447bd71b7e539c19c46a03b73c0e91fa66 before 9e11c6bb745be4e9b325cf96031b4ea34801342d; affected 51c5d8447bd71b7e539c19c46a03b73c0e91fa66 before 64b2c441171febf075bd9632aca579afda8ab9fb; affected 51c5d8447bd71b7e539c19c46a03b73c0e91fa66 before e0cfe7aa41f3965f5224affd88afd48c60f6ad1f; affected 51c5d8447bd71b7e539c19c46a03b73c0e91fa66 before 42343e3c6195e934b9cb4c08b7ff84a3778d77f9; affected 51c5d8447bd71b7e539c19c46a03b73c0e91fa66 before f5ce76aeddf01ca8f2a80fc37119388d59db7c10; affected 51c5d8447bd71b7e539c19c46a03b73c0e91fa66 before 90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e |
| Linux / Linux | affected 4.10; unaffected 0 before 4.10; unaffected 4.19.270 through 4.19.*; unaffected 5.4.229 through 5.4.*; unaffected 5.10.163 through 5.10.*; unaffected 5.15.86 through 5.15.*; unaffected 6.0.16 through 6.0.*; unaffected 6.1.2 through 6.1.*; unaffected 6.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/f5506e0bbb25102bd8ef2e1a3b483a0b934e454e
- https://git.kernel.org/stable/c/9e11c6bb745be4e9b325cf96031b4ea34801342d
- https://git.kernel.org/stable/c/64b2c441171febf075bd9632aca579afda8ab9fb
- https://git.kernel.org/stable/c/e0cfe7aa41f3965f5224affd88afd48c60f6ad1f
- https://git.kernel.org/stable/c/42343e3c6195e934b9cb4c08b7ff84a3778d77f9
- https://git.kernel.org/stable/c/f5ce76aeddf01ca8f2a80fc37119388d59db7c10
- https://git.kernel.org/stable/c/90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e