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CVE-2023-52454

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

Description (CNA)

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 (CNA)

Vendor / productVersions
Linux / Linuxaffected 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before ee5e7632e981673f42a50ade25e71e612e543d9d; affected 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before f775f2621c2ac5cc3a0b3a64665dad4fb146e510; affected 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before 4cb3cf7177ae3666be7fb27d4ad4d72a295fb02d; affected 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before 2871aa407007f6f531fae181ad252486e022df42; affected 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before 24e05760186dc070d3db190ca61efdbce23afc88; affected 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before 70154e8d015c9b4fb56c1a2ef1fc8b83d45c7f68; affected 872d26a391da92ed8f0c0f5cb5fef428067b7f30 before efa56305908ba20de2104f1b8508c6a7401833be
Linux / Linuxaffected 5.0; unaffected 0 before 5.0; unaffected 5.4.268 through 5.4.*; unaffected 5.10.209 through 5.10.*; unaffected 5.15.148 through 5.15.*; unaffected 6.1.75 through 6.1.*; unaffected 6.6.14 through 6.6.*; unaffected 6.7.2 through 6.7.*; unaffected 6.8 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.