CVE-2024-26876

Summary

In the Linux kernel, the following vulnerability has been resolved:

drm/bridge: adv7511: fix crash on irq during probe

Moved IRQ registration down to end of adv7511_probe().

If an IRQ already is pending during adv7511_probe (before adv7511_cec_init) then cec_received_msg_ts could crash using uninitialized data:

Unable to handle kernel read from unreadable memory at virtual address 00000000000003d5
Internal error: Oops: 96000004 [#1] PREEMPT_RT SMP
Call trace:
 cec_received_msg_ts+0x48/0x990 [cec]
 adv7511_cec_irq_process+0x1cc/0x308 [adv7511]
 adv7511_irq_process+0xd8/0x120 [adv7511]
 adv7511_irq_handler+0x1c/0x30 [adv7511]
 irq_thread_fn+0x30/0xa0
 irq_thread+0x14c/0x238
 kthread+0x190/0x1a8

Affected Software

VendorProductVersion RangeStatus
LinuxLinux3b1b975003e4a3da4b93ab032487a3ae4afca7b5 < 50f4b57e9a9db4ede9294f39b9e75b5f26bae9b7affected
LinuxLinux3b1b975003e4a3da4b93ab032487a3ae4afca7b5 < 955c1252930677762e0db2b6b9e36938c887445caffected
LinuxLinux3b1b975003e4a3da4b93ab032487a3ae4afca7b5 < 28a94271bd50e4cf498df0381f776f8ea40a289eaffected
LinuxLinux3b1b975003e4a3da4b93ab032487a3ae4afca7b5 < aeedaee5ef5468caf59e2bb1265c2116e0c9a924affected
LinuxLinux4.15affected
LinuxLinux0 < 4.15unaffected
LinuxLinux6.6.55 <= 6.6.*unaffected
LinuxLinux6.7.11 <= 6.7.*unaffected
LinuxLinux6.8.2 <= 6.8.*unaffected
LinuxLinux6.9 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

CVE Program Container

Additional References

References