CVE-2023-52454

Summary

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

nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length

If the host sends an H2CData command with an invalid DATAL, the kernel may crash in nvmet_tcp_build_pdu_iovec().

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 lr : nvmet_tcp_io_work+0x6ac/0x718 [nvmet_tcp] Call trace: process_one_work+0x174/0x3c8 worker_thread+0x2d0/0x3e8 kthread+0x104/0x110

Fix the bug by raising a fatal error if DATAL isn't coherent with the packet size. Also, the PDU length should never exceed the MAXH2CDATA parameter which has been communicated to the host in nvmet_tcp_handle_icreq().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux872d26a391da92ed8f0c0f5cb5fef428067b7f30 < ee5e7632e981673f42a50ade25e71e612e543d9daffected
LinuxLinux872d26a391da92ed8f0c0f5cb5fef428067b7f30 < f775f2621c2ac5cc3a0b3a64665dad4fb146e510affected
LinuxLinux872d26a391da92ed8f0c0f5cb5fef428067b7f30 < 4cb3cf7177ae3666be7fb27d4ad4d72a295fb02daffected
LinuxLinux872d26a391da92ed8f0c0f5cb5fef428067b7f30 < 2871aa407007f6f531fae181ad252486e022df42affected
LinuxLinux872d26a391da92ed8f0c0f5cb5fef428067b7f30 < 24e05760186dc070d3db190ca61efdbce23afc88affected
LinuxLinux872d26a391da92ed8f0c0f5cb5fef428067b7f30 < 70154e8d015c9b4fb56c1a2ef1fc8b83d45c7f68affected
LinuxLinux872d26a391da92ed8f0c0f5cb5fef428067b7f30 < efa56305908ba20de2104f1b8508c6a7401833beaffected
LinuxLinux5.0affected
LinuxLinux0 < 5.0unaffected
LinuxLinux5.4.268 <= 5.4.*unaffected
LinuxLinux5.10.209 <= 5.10.*unaffected
LinuxLinux5.15.148 <= 5.15.*unaffected
LinuxLinux6.1.75 <= 6.1.*unaffected
LinuxLinux6.6.14 <= 6.6.*unaffected
LinuxLinux6.7.2 <= 6.7.*unaffected
LinuxLinux6.8 <= *unaffected

Weaknesses

ADP Enrichment

CISA ADP Vulnrichment

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

CVE Program Container

Additional References

References