Description (CNA)
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
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 35630df68d6030daf12dde12ed07bbe26324e6ac before 2156490c4b7cacda9a18ec99929940b8376dc0e3; affected 35630df68d6030daf12dde12ed07bbe26324e6ac before 3405eb641dafcc8b28d174784b203c1622c121bf; affected 35630df68d6030daf12dde12ed07bbe26324e6ac before b0c202a8dc63008205a5d546559736507a9aae66; affected 35630df68d6030daf12dde12ed07bbe26324e6ac before 43aa468df246175207a7d5d7d6d31b231f15b49c; affected 35630df68d6030daf12dde12ed07bbe26324e6ac before 84dd9cc34014e3a3dcce0eb6d54b8a067e97676b; affected 35630df68d6030daf12dde12ed07bbe26324e6ac before 5e331022b448fbc5e76f24349cd0246844dcad25; affected 35630df68d6030daf12dde12ed07bbe26324e6ac before f589e5b56c562d99ea74e05b1c3f0eab78aa17a3; affected 35630df68d6030daf12dde12ed07bbe26324e6ac before 5000fe6c27827a61d8250a7e4a1d26c3298ef4f6 |
| Linux / Linux | affected 3.17; unaffected 0 before 3.17; unaffected 4.14.311 through 4.14.*; unaffected 4.19.279 through 4.19.*; unaffected 5.4.238 through 5.4.*; unaffected 5.10.176 through 5.10.*; unaffected 5.15.104 through 5.15.*; unaffected 6.1.21 through 6.1.*; unaffected 6.2.8 through 6.2.*; unaffected 6.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/2156490c4b7cacda9a18ec99929940b8376dc0e3
- https://git.kernel.org/stable/c/3405eb641dafcc8b28d174784b203c1622c121bf
- https://git.kernel.org/stable/c/b0c202a8dc63008205a5d546559736507a9aae66
- https://git.kernel.org/stable/c/43aa468df246175207a7d5d7d6d31b231f15b49c
- https://git.kernel.org/stable/c/84dd9cc34014e3a3dcce0eb6d54b8a067e97676b
- https://git.kernel.org/stable/c/5e331022b448fbc5e76f24349cd0246844dcad25
- https://git.kernel.org/stable/c/f589e5b56c562d99ea74e05b1c3f0eab78aa17a3
- https://git.kernel.org/stable/c/5000fe6c27827a61d8250a7e4a1d26c3298ef4f6