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CVE PROGRAM SOURCE RECORD7.0 High

CVE-2024-38576

rcu: Fix buffer overflow in print_cpu_stall_info()

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: rcu: Fix buffer overflow in print_cpu_stall_info() The rcuc-starvation output from print_cpu_stall_info() might overflow the buffer if there is a huge difference in jiffies difference. The situation might seem improbable, but computers sometimes get very confused about time, which can result in full-sized integers, and, in this case, buffer overflow. Also, the unsigned jiffies difference is printed using %ld, which is normally for signed integers. This is intentional for debugging purposes, but it is not obvious from the code. This commit therefore changes sprintf() to snprintf() and adds a clarifying comment about intention of %ld format. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 245a62982502255314b63dd2c4daaedd1cd595a6 to < e2228ed3fe7aa838fba87c79a76fb1ad9ea47138affected
  • 245a62982502255314b63dd2c4daaedd1cd595a6 to < afb39909bfb5c08111f99e21bf5be7505f59ff1caffected
  • 245a62982502255314b63dd2c4daaedd1cd595a6 to < 9351e1338539cb7f319ffc1210fa9b2aa27384b5affected
  • 245a62982502255314b63dd2c4daaedd1cd595a6 to < 4c3e2ef4d8ddd313c8ce3ac30505940bea8d6257affected
  • 245a62982502255314b63dd2c4daaedd1cd595a6 to < 3758f7d9917bd7ef0482c4184c0ad673b4c4e069affected

Linux Linux

Default version status: affected

  • 6.0affected
  • 0 to < 6.0unaffected
  • 6.1.93 to ≤ 6.1.*unaffected
  • 6.6.33 to ≤ 6.6.*unaffected
  • 6.8.12 to ≤ 6.8.*unaffected
  • 6.9.3 to ≤ 6.9.*unaffected
  • 6.10 to ≤ *unaffected

References