CVE-2024-56662

Summary

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

acpi: nfit: vmalloc-out-of-bounds Read in acpi_nfit_ctl

Fix an issue detected by syzbot with KASAN:

BUG: KASAN: vmalloc-out-of-bounds in cmd_to_func drivers/acpi/nfit/ core.c:416 [inline] BUG: KASAN: vmalloc-out-of-bounds in acpi_nfit_ctl+0x20e8/0x24a0 drivers/acpi/nfit/core.c:459

The issue occurs in cmd_to_func when the call_pkg->nd_reserved2 array is accessed without verifying that call_pkg points to a buffer that is appropriately sized as a struct nd_cmd_pkg. This can lead to out-of-bounds access and undefined behavior if the buffer does not have sufficient space.

To address this, a check was added in acpi_nfit_ctl() to ensure that buf is not NULL and that buf_len is less than sizeof(*call_pkg) before accessing it. This ensures safe access to the members of call_pkg, including the nd_reserved2 array.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxebe9f6f19d80d8978d16078dff3d5bd93ad8d102 < 616aa5f3c86e0479bcbb81e41c08c43ff32af637affected
LinuxLinuxebe9f6f19d80d8978d16078dff3d5bd93ad8d102 < bbdb3307f609ec4dc9558770f464ede01fe52aedaffected
LinuxLinuxebe9f6f19d80d8978d16078dff3d5bd93ad8d102 < 143f723e9eb4f0302ffb7adfdc7ef77eab3f68e0affected
LinuxLinuxebe9f6f19d80d8978d16078dff3d5bd93ad8d102 < e08dc2dc3c3f7938df0e4476fe3e6fdec5583c1daffected
LinuxLinuxebe9f6f19d80d8978d16078dff3d5bd93ad8d102 < 212846fafb753a48e869e2a342fc1e24048da771affected
LinuxLinuxebe9f6f19d80d8978d16078dff3d5bd93ad8d102 < 265e98f72bac6c41a4492d3e30a8e5fd22fe0779affected
LinuxLinux63108f2a408abea7ecab063efa0f398da4d0d14baffected
LinuxLinuxf5878c4f084dc6b1386dad03970bb61ad5e9dc4baffected
LinuxLinux0c79794474895dbbc3c52225f7e9f73cfecbb7ddaffected
LinuxLinux4.14.176 < 4.15affected
LinuxLinux4.19.31 < 4.20affected
LinuxLinux5.0.4 < 5.1affected
LinuxLinux5.1affected
LinuxLinux0 < 5.1unaffected
LinuxLinux5.10.232 <= 5.10.*unaffected
LinuxLinux5.15.175 <= 5.15.*unaffected
LinuxLinux6.1.121 <= 6.1.*unaffected
LinuxLinux6.6.67 <= 6.6.*unaffected
LinuxLinux6.12.6 <= 6.12.*unaffected
LinuxLinux6.13 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References