CVSS 7.8 · High EPSS 0,21%
Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: nfc: st-nci: Fix use after free bug in ndlc_remove due to race condition This bug influences both st_nci_i2c_remove and st_nci_spi_remove. Take st_nci_i2c_remove as an example. In st_nci_i2c_probe, it called ndlc_probe and bound &ndlc->sm_work with llt_ndlc_sm_work. When it calls ndlc_recv or timeout handler, it will finally call schedule_work to start the work. When we call st_nci_i2c_remove to remove the driver, there may be a sequence as follows: Fix it by finishing the work before cleanup in ndlc_remove CPU0 CPU1 |llt_ndlc_sm_work st_nci_i2c_remove | ndlc_remove | st_nci_remove | nci_free_device| kfree(ndev) | //free ndlc->ndev | |llt_ndlc_rcv_queue |nci_recv_frame |//use ndlc->ndev
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 3.17 hingga sebelum 4.14.311 |
| linux | linux kernel | Versi 4.15 hingga sebelum 4.19.279 |
| linux | linux kernel | Versi 4.20 hingga sebelum 5.4.238 |
| linux | linux kernel | Versi 5.5 hingga sebelum 5.10.176 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.104 |
| linux | linux kernel | Versi 5.16 hingga sebelum 6.1.21 |
| linux | linux kernel | Versi 6.2 hingga sebelum 6.2.8 |
| linux | linux kernel | Versi 6.3 rc1 |
| linux | linux kernel | Versi 6.3 rc2 |