CVE-2024-35905

Summary

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

bpf: Protect against int overflow for stack access size

This patch re-introduces protection against the size of access to stack memory being negative; the access size can appear negative as a result of overflowing its signed int representation. This should not actually happen, as there are other protections along the way, but we should protect against it anyway. One code path was missing such protections (fixed in the previous patch in the series), causing out-of-bounds array accesses in check_stack_range_initialized(). This patch causes the verification of a program with such a non-sensical access size to fail.

This check used to exist in a more indirect way, but was inadvertendly removed in a833a17aeac7.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxafea95d319ccb4ad2060dece9ac5e2e364dec543 < 9970e059af471478455f9534e8c3db82f8c5496daffected
LinuxLinux02962684258eb53f414a8a59854767be526e6abb < 37dc1718dc0c4392dbfcb9adec22a776e745dd69affected
LinuxLinuxb1d4d54d32ce6342f5faffe71bae736540ce7cb5 < 98cdac206b112bec63852e94802791e316acc2c1affected
LinuxLinux08b91babccbb168353f8d43fea0ed28a4cad568c < 3f0784b2f1eb9147973d8c43ba085c5fdf44ff69affected
LinuxLinuxa833a17aeac73b33f79433d7cee68d5cafd71e4f < 203a68151e8eeb331d4a64ab78303f3a15faf103affected
LinuxLinuxa833a17aeac73b33f79433d7cee68d5cafd71e4f < ecc6a2101840177e57c925c102d2d29f260d37c8affected
LinuxLinux1858b8a331937f3976d8482cd5f6e1f945294ad3affected
LinuxLinux5.10.209 < 5.10.215affected
LinuxLinux5.15.148 < 5.15.154affected
LinuxLinux6.1.75 < 6.1.85affected
LinuxLinux6.6.14 < 6.6.26affected
LinuxLinux6.7.2 < 6.8affected
LinuxLinux6.8affected
LinuxLinux0 < 6.8unaffected
LinuxLinux5.10.215 <= 5.10.*unaffected
LinuxLinux5.15.154 <= 5.15.*unaffected
LinuxLinux6.1.85 <= 6.1.*unaffected
LinuxLinux6.6.26 <= 6.6.*unaffected
LinuxLinux6.8.5 <= 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

Additional References

References