Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: mmc: atmel-mci: 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(). So fix this by checking the return value and calling mmc_free_host() in the error path.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 7d2be0749a59096a334c94dc48f43294193cb8ed before 99a6cdfa2cf05028b52f6d8ee85ccc5f8b71b4a2; affected 7d2be0749a59096a334c94dc48f43294193cb8ed before 6bb26abb92f25e582a0976091a10b539fe3796db; affected 7d2be0749a59096a334c94dc48f43294193cb8ed before 00ac0f5f95920f003cd6ece53cdc759549b69118; affected 7d2be0749a59096a334c94dc48f43294193cb8ed before 1925472dec31ec061d57412b3a65a056ea24f340; affected 7d2be0749a59096a334c94dc48f43294193cb8ed before cc8bb436f3c842a86b9082d97933582120d180e2; affected 7d2be0749a59096a334c94dc48f43294193cb8ed before 85946ceb0fac20ab39cdb85333086daf0291a553; affected 7d2be0749a59096a334c94dc48f43294193cb8ed before 9e6e8c43726673ca2abcaac87640b9215fd72f4c |
| Linux / Linux | affected 2.6.27; unaffected 0 before 2.6.27; 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/99a6cdfa2cf05028b52f6d8ee85ccc5f8b71b4a2
- https://git.kernel.org/stable/c/6bb26abb92f25e582a0976091a10b539fe3796db
- https://git.kernel.org/stable/c/00ac0f5f95920f003cd6ece53cdc759549b69118
- https://git.kernel.org/stable/c/1925472dec31ec061d57412b3a65a056ea24f340
- https://git.kernel.org/stable/c/cc8bb436f3c842a86b9082d97933582120d180e2
- https://git.kernel.org/stable/c/85946ceb0fac20ab39cdb85333086daf0291a553
- https://git.kernel.org/stable/c/9e6e8c43726673ca2abcaac87640b9215fd72f4c