7.8

CVE-2023-53106

nfc: st-nci: Fix use after free bug in ndlc_remove due to race condition

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
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.17 < 4.14.311
Linux ≫ Linux Kernel Version >= 4.15 < 4.19.279
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.238
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.176
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.104
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.21
Linux ≫ Linux Kernel Version >= 6.2 < 6.2.8
Linux ≫ Linux Kernel Version6.3 Updaterc1
Linux ≫ Linux Kernel Version6.3 Updaterc2
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.067
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/2156490c4b7cacda9a18ec99929940b8376dc0e3
Patch
https://git.kernel.org/stable/c/3405eb641dafcc8b28d174784b203c1622c121bf
Patch
https://git.kernel.org/stable/c/b0c202a8dc63008205a5d546559736507a9aae66
Patch
https://git.kernel.org/stable/c/43aa468df246175207a7d5d7d6d31b231f15b49c
Patch
https://git.kernel.org/stable/c/84dd9cc34014e3a3dcce0eb6d54b8a067e97676b
Patch
https://git.kernel.org/stable/c/5e331022b448fbc5e76f24349cd0246844dcad25
Patch
https://git.kernel.org/stable/c/f589e5b56c562d99ea74e05b1c3f0eab78aa17a3
Patch
https://git.kernel.org/stable/c/5000fe6c27827a61d8250a7e4a1d26c3298ef4f6
Patch