Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: spi: spi-fsl-lpspi: fix teardown order issue (UAF) There is a teardown order issue in the driver. The SPI controller is registered using devm_spi_register_controller(), which delays unregistration of the SPI controller until after the fsl_lpspi_remove() function returns. As the fsl_lpspi_remove() function synchronously tears down the DMA channels, a running SPI transfer triggers the following NULL pointer dereference due to use after free: | fsl_lpspi 42550000.spi: I/O Error in DMA RX | Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [...] | Call trace: | fsl_lpspi_dma_transfer+0x260/0x340 [spi_fsl_lpspi] | fsl_lpspi_transfer_one+0x198/0x448 [spi_fsl_lpspi] | spi_transfer_one_message+0x49c/0x7c8 | __spi_pump_transfer_message+0x120/0x420 | __spi_sync+0x2c4/0x520 | spi_sync+0x34/0x60 | spidev_message+0x20c/0x378 [spidev] | spidev_ioctl+0x398/0x750 [spidev] [...] Switch from devm_spi_register_controller() to spi_register_controller() in fsl_lpspi_probe() and add the corresponding spi_unregister_controller() in fsl_lpspi_remove().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 5314987de5e5f5e38436ef4a69328bc472bbd63e before fbe6f40caeebb0b1ea9dfedc259124c1d3cda7a6; affected 5314987de5e5f5e38436ef4a69328bc472bbd63e before ca4483f36ac1b62e69f8b182c5b8f059e0abecfb; affected 5314987de5e5f5e38436ef4a69328bc472bbd63e before e3fd54f8b0317fbccc103961ddd660f2a32dcf0b; affected 5314987de5e5f5e38436ef4a69328bc472bbd63e before adb25339b66112393fd6892ceff926765feb5b86; affected 5314987de5e5f5e38436ef4a69328bc472bbd63e before d5d01f24bc6fbde40b4e567ef9160194b61267bc; affected 5314987de5e5f5e38436ef4a69328bc472bbd63e before e89e2b97253c124d37bf88e96e5e8ce5c3aeeec3; affected 5314987de5e5f5e38436ef4a69328bc472bbd63e before 15650dfbaeeb14bcaaf053b93cf631db8d465300; affected 5314987de5e5f5e38436ef4a69328bc472bbd63e before b341c1176f2e001b3adf0b47154fc31589f7410e |
| Linux / Linux | affected 4.10; unaffected 0 before 4.10; unaffected 5.10.253 through 5.10.*; unaffected 5.15.203 through 5.15.*; unaffected 6.1.168 through 6.1.*; unaffected 6.6.131 through 6.6.*; unaffected 6.12.80 through 6.12.*; unaffected 6.18.21 through 6.18.*; unaffected 6.19.11 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/fbe6f40caeebb0b1ea9dfedc259124c1d3cda7a6
- https://git.kernel.org/stable/c/ca4483f36ac1b62e69f8b182c5b8f059e0abecfb
- https://git.kernel.org/stable/c/e3fd54f8b0317fbccc103961ddd660f2a32dcf0b
- https://git.kernel.org/stable/c/adb25339b66112393fd6892ceff926765feb5b86
- https://git.kernel.org/stable/c/d5d01f24bc6fbde40b4e567ef9160194b61267bc
- https://git.kernel.org/stable/c/e89e2b97253c124d37bf88e96e5e8ce5c3aeeec3
- https://git.kernel.org/stable/c/15650dfbaeeb14bcaaf053b93cf631db8d465300
- https://git.kernel.org/stable/c/b341c1176f2e001b3adf0b47154fc31589f7410e
ADP enrichment
No English description supplied.