CVSS 4.7 · Medium EPSS 0,24%
Kerentanan NULL Pointer Dereference pada linux kernel. Skor CVSS 3.1 4.7 (Medium) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: tpm: use try_get_ops() in tpm-space.c As part of the series conversion to remove nested TPM operations: https://lore.kernel.org/all/20190205224723.19671-1-jarkko.sakkinen@linux.intel.com/ exposure of the chip->tpm_mutex was removed from much of the upper level code. In this conversion, tpm2_del_space() was missed. This didn't matter much because it's usually called closely after a converted operation, so there's only a very tiny race window where the chip can be removed before the space flushing is done which causes a NULL deref on the mutex. However, there are reports of this window being hit in practice, so fix this by converting tpm2_del_space() to use tpm_try_get_ops(), which performs all the teardown checks before acquring the mutex.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 4.12 hingga sebelum 5.4.188 |
| linux | linux kernel | Versi 5.5 hingga sebelum 5.10.109 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.32 |
| linux | linux kernel | Versi 5.16 hingga sebelum 5.16.18 |
| linux | linux kernel | Versi 5.17 |