Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
35630df68d6030daf12dde12ed07bbe26324e6ac to < 2156490c4b7cacda9a18ec99929940b8376dc0e3affected35630df68d6030daf12dde12ed07bbe26324e6ac to < 3405eb641dafcc8b28d174784b203c1622c121bfaffected35630df68d6030daf12dde12ed07bbe26324e6ac to < b0c202a8dc63008205a5d546559736507a9aae66affected35630df68d6030daf12dde12ed07bbe26324e6ac to < 43aa468df246175207a7d5d7d6d31b231f15b49caffected35630df68d6030daf12dde12ed07bbe26324e6ac to < 84dd9cc34014e3a3dcce0eb6d54b8a067e97676baffected35630df68d6030daf12dde12ed07bbe26324e6ac to < 5e331022b448fbc5e76f24349cd0246844dcad25affected35630df68d6030daf12dde12ed07bbe26324e6ac to < f589e5b56c562d99ea74e05b1c3f0eab78aa17a3affected35630df68d6030daf12dde12ed07bbe26324e6ac to < 5000fe6c27827a61d8250a7e4a1d26c3298ef4f6affected
Linux Linux
Default version status: affected
3.17affected0 to < 3.17unaffected4.14.311 to ≤ 4.14.*unaffected4.19.279 to ≤ 4.19.*unaffected5.4.238 to ≤ 5.4.*unaffected5.10.176 to ≤ 5.10.*unaffected5.15.104 to ≤ 5.15.*unaffected6.1.21 to ≤ 6.1.*unaffected6.2.8 to ≤ 6.2.*unaffected6.3 to ≤ *unaffected
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 ↗