CVE-2026-31485
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
spi: spi-fsl-lpspi: fix teardown order issue (UAF)
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().
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5314987de5e5f5e38436ef4a69328bc472bbd63e | affected | git | fbe6f40caeebb0b1ea9dfedc259124c1d3cda7a6 | Unavailable | None listed |
| 5314987de5e5f5e38436ef4a69328bc472bbd63e | affected | git | ca4483f36ac1b62e69f8b182c5b8f059e0abecfb | Unavailable | None listed |
| 5314987de5e5f5e38436ef4a69328bc472bbd63e | affected | git | e3fd54f8b0317fbccc103961ddd660f2a32dcf0b | Unavailable | None listed |
| 5314987de5e5f5e38436ef4a69328bc472bbd63e | affected | git | adb25339b66112393fd6892ceff926765feb5b86 | Unavailable | None listed |
| 5314987de5e5f5e38436ef4a69328bc472bbd63e | affected | git | d5d01f24bc6fbde40b4e567ef9160194b61267bc | Unavailable | None listed |
| 5314987de5e5f5e38436ef4a69328bc472bbd63e | affected | git | e89e2b97253c124d37bf88e96e5e8ce5c3aeeec3 | Unavailable | None listed |
| 5314987de5e5f5e38436ef4a69328bc472bbd63e | affected | git | 15650dfbaeeb14bcaaf053b93cf631db8d465300 | Unavailable | None listed |
| 5314987de5e5f5e38436ef4a69328bc472bbd63e | affected | git | b341c1176f2e001b3adf0b47154fc31589f7410e | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.10 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.10 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.168 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.131 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.80 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.21 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.11 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |