Description
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().
Product status
51c5d8447bd71b7e539c19c46a03b73c0e91fa66 (git) before f5506e0bbb25102bd8ef2e1a3b483a0b934e454e
51c5d8447bd71b7e539c19c46a03b73c0e91fa66 (git) before 9e11c6bb745be4e9b325cf96031b4ea34801342d
51c5d8447bd71b7e539c19c46a03b73c0e91fa66 (git) before 64b2c441171febf075bd9632aca579afda8ab9fb
51c5d8447bd71b7e539c19c46a03b73c0e91fa66 (git) before e0cfe7aa41f3965f5224affd88afd48c60f6ad1f
51c5d8447bd71b7e539c19c46a03b73c0e91fa66 (git) before 42343e3c6195e934b9cb4c08b7ff84a3778d77f9
51c5d8447bd71b7e539c19c46a03b73c0e91fa66 (git) before f5ce76aeddf01ca8f2a80fc37119388d59db7c10
51c5d8447bd71b7e539c19c46a03b73c0e91fa66 (git) before 90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e
4.10
Any version before 4.10
4.19.270 (semver)
5.4.229 (semver)
5.10.163 (semver)
5.15.86 (semver)
6.0.16 (semver)
6.1.2 (semver)
6.2 (original_commit_for_fix)
References
git.kernel.org/...c/f5506e0bbb25102bd8ef2e1a3b483a0b934e454e
git.kernel.org/...c/9e11c6bb745be4e9b325cf96031b4ea34801342d
git.kernel.org/...c/64b2c441171febf075bd9632aca579afda8ab9fb
git.kernel.org/...c/e0cfe7aa41f3965f5224affd88afd48c60f6ad1f
git.kernel.org/...c/42343e3c6195e934b9cb4c08b7ff84a3778d77f9
git.kernel.org/...c/f5ce76aeddf01ca8f2a80fc37119388d59db7c10
git.kernel.org/...c/90935f16f2650ab7416fa2ffbe5c28cb39cf3f1e
