Answer in brief
CVE-2026-31485 records a High severity (CVSS 7.8) vulnerability in spi: spi-fsl-lpspi: fix teardown order issue (UAF). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-31485 records a High severity (CVSS 7.8) vulnerability in spi: spi-fsl-lpspi: fix teardown order issue (UAF). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=5314987de5e5f5e38436ef4a69328bc472bbd63e <fbe6f40caeebb0b1ea9dfedc259124c1d3cda7a6 || >=5314987de5e5f5e38436ef4a69328bc472bbd63e <ca4483f36ac1b62e69f8b182c5b8f059e0abecfb || >=5314987de5e5f5e38436ef4a69328bc472bbd63e <e3fd54f8b0317fbccc103961ddd660f2a32dcf0b || >=5314987de5e5f5e38436ef4a69328bc472bbd63e <adb25339b66112393fd6892ceff926765feb5b86 || >=5314987de5e5f5e38436ef4a69328bc472bbd63e <d5d01f24bc6fbde40b4e567ef9160194b61267bc || >=5314987de5e5f5e38436ef4a69328bc472bbd63e <e89e2b97253c124d37bf88e96e5e8ce5c3aeeec3 || >=5314987de5e5f5e38436ef4a69328bc472bbd63e <15650dfbaeeb14bcaaf053b93cf631db8d465300 || >=5314987de5e5f5e38436ef4a69328bc472bbd63e <b341c1176f2e001b3adf0b47154fc31589f7410e | fbe6f40caeebb0b1ea9dfedc259124c1d3cda7a6, ca4483f36ac1b62e69f8b182c5b8f059e0abecfb, e3fd54f8b0317fbccc103961ddd660f2a32dcf0b, adb25339b66112393fd6892ceff926765feb5b86, d5d01f24bc6fbde40b4e567ef9160194b61267bc, e89e2b97253c124d37bf88e96e5e8ce5c3aeeec3, 15650dfbaeeb14bcaaf053b93cf631db8d465300, b341c1176f2e001b3adf0b47154fc31589f7410e |
| Linux/Linuxgeneric | 4.10 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
Published upstream
Apr 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
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().
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=5314987de5e5f5e38436ef4a69328bc472bbd63e <fbe6f40caeebb0b1ea9dfedc259124c1d3cda7a6 || >=5314987de5e5f5e38436ef4a69328bc472bbd63e <ca4483f36ac1b62e69f8b182c5b8f059e0abecfb || >=5314987de5e5f5e38436ef4a69328bc472bbd63e <e3fd54f8b0317fbccc103961ddd660f2a32dcf0b || >=5314987de5e5f5e38436ef4a69328bc472bbd63e <adb25339b66112393fd6892ceff926765feb5b86 || >=5314987de5e5f5e38436ef4a69328bc472bbd63e <d5d01f24bc6fbde40b4e567ef9160194b61267bc || >=5314987de5e5f5e38436ef4a69328bc472bbd63e <e89e2b97253c124d37bf88e96e5e8ce5c3aeeec3 || >=5314987de5e5f5e38436ef4a69328bc472bbd63e <15650dfbaeeb14bcaaf053b93cf631db8d465300 || >=5314987de5e5f5e38436ef4a69328bc472bbd63e <b341c1176f2e001b3adf0b47154fc31589f7410e | fbe6f40caeebb0b1ea9dfedc259124c1d3cda7a6, ca4483f36ac1b62e69f8b182c5b8f059e0abecfb, e3fd54f8b0317fbccc103961ddd660f2a32dcf0b, adb25339b66112393fd6892ceff926765feb5b86, d5d01f24bc6fbde40b4e567ef9160194b61267bc, e89e2b97253c124d37bf88e96e5e8ce5c3aeeec3, 15650dfbaeeb14bcaaf053b93cf631db8d465300, b341c1176f2e001b3adf0b47154fc31589f7410e |
| Linux/Linuxgeneric | 4.10 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
Published upstream
Apr 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
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().
Quoted source text, attributed separately from HOL analysis.