Common vulnerabilities and Exposures (CVE)

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Required CVE Record Information

Description

In the Linux kernel, the following vulnerability has been resolved: spi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers In case a IRQ based transfer times out the bcm2835_spi_handle_err() function is called. Since commit 1513ceee70f2 ("spi: bcm2835: Drop dma_pending flag") the TX and RX DMA transfers are unconditionally canceled, leading to NULL pointer derefs if ctlr->dma_tx or ctlr->dma_rx are not set. Fix the NULL pointer deref by checking that ctlr->dma_tx and ctlr->dma_rx are valid pointers before accessing them.

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Versions 5 Total

Default Status: unaffected

affected

  • affected from 1513ceee70f2bd523e025efe0c715328e1a43ffd before 76668d2a2f367d25ff448e6d7087406af7d7bb2b 
  • affected from 1513ceee70f2bd523e025efe0c715328e1a43ffd before 684896e675edd8b669fd3e9f547c5038222d85bc 
  • affected from 1513ceee70f2bd523e025efe0c715328e1a43ffd before 58466e05390043d2805685c70f55f3f59711bdf2 
  • affected from 1513ceee70f2bd523e025efe0c715328e1a43ffd before 49ffa473218012e765682343de2052eb4c1f06a7 
  • affected from 1513ceee70f2bd523e025efe0c715328e1a43ffd before 4ceaa684459d414992acbefb4e4c31f2dfc50641 

Versions 7 Total

Default Status: affected

affected

  • affected at 5.4 

unaffected

  • unaffected from 0 before 5.4 
  • unaffected from 5.4.208 through 5.4.* 
  • unaffected from 5.10.134 through 5.10.* 
  • unaffected from 5.15.58 through 5.15.* 
  • unaffected from 5.18.15 through 5.18.* 
  • unaffected from 5.19