In the Linux kernel, the following vulnerability has been resolved:
iwcxgb4: Fix potential NULL dereference in c4iwfillrescmidentry()
This condition needs to match the previous "if (epcp->state == LISTEN) {" exactly to avoid a NULL dereference of either "listen_ep" or "ep". The problem is that "epcp" has been re-assigned so just testing "if (epcp->state == LISTEN) {" a second time is not sufficient.
{ "vanir_signatures": [ { "deprecated": false, "signature_type": "Line", "target": { "file": "drivers/infiniband/hw/cxgb4/restrack.c" }, "signature_version": "v1", "digest": { "line_hashes": [ "306916186282857807521041754243975409292", "262336503031058136535878709723387998245", "224064532901553933375323344777354158574", "72578001209695310048374120876413854992" ], "threshold": 0.9 }, "id": "CVE-2023-53476-2a7201bb", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4ca446b127c568b59cb8d9748b6f70499624bb18" }, { "deprecated": false, "signature_type": "Line", "target": { "file": "drivers/infiniband/hw/cxgb4/restrack.c" }, "signature_version": "v1", "digest": { "line_hashes": [ "306916186282857807521041754243975409292", "262336503031058136535878709723387998245", "224064532901553933375323344777354158574", "72578001209695310048374120876413854992" ], "threshold": 0.9 }, "id": "CVE-2023-53476-8b2baca5", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@dd55240e4364d64befcc575b0d33091881524f42" }, { "deprecated": false, "signature_type": "Function", "target": { "file": "drivers/infiniband/hw/cxgb4/restrack.c", "function": "c4iw_fill_res_cm_id_entry" }, "signature_version": "v1", "digest": { "length": 1675.0, "function_hash": "76540015817032289103756019958224497507" }, "id": "CVE-2023-53476-937c16df", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@dd55240e4364d64befcc575b0d33091881524f42" }, { "deprecated": false, "signature_type": "Line", "target": { "file": "drivers/infiniband/hw/cxgb4/restrack.c" }, "signature_version": "v1", "digest": { "line_hashes": [ "306916186282857807521041754243975409292", "262336503031058136535878709723387998245", "224064532901553933375323344777354158574", "72578001209695310048374120876413854992" ], "threshold": 0.9 }, "id": "CVE-2023-53476-99ed5a0e", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@76e0396313c79ecd0df44ee3c18745cfac52b3e6" }, { "deprecated": false, "signature_type": "Line", "target": { "file": "drivers/infiniband/hw/cxgb4/restrack.c" }, "signature_version": "v1", "digest": { "line_hashes": [ "306916186282857807521041754243975409292", "262336503031058136535878709723387998245", "224064532901553933375323344777354158574", "72578001209695310048374120876413854992" ], "threshold": 0.9 }, "id": "CVE-2023-53476-a302dab5", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@24278dc380aab6a1aef0a75317f57ad4c2453cf6" }, { "deprecated": false, "signature_type": "Function", "target": { "file": "drivers/infiniband/hw/cxgb4/restrack.c", "function": "c4iw_fill_res_cm_id_entry" }, "signature_version": "v1", "digest": { "length": 1675.0, "function_hash": "76540015817032289103756019958224497507" }, "id": "CVE-2023-53476-b3592994", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@24278dc380aab6a1aef0a75317f57ad4c2453cf6" }, { "deprecated": false, "signature_type": "Function", "target": { "file": "drivers/infiniband/hw/cxgb4/restrack.c", "function": "c4iw_fill_res_cm_id_entry" }, "signature_version": "v1", "digest": { "length": 1675.0, "function_hash": "76540015817032289103756019958224497507" }, "id": "CVE-2023-53476-d08e81c2", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@76e0396313c79ecd0df44ee3c18745cfac52b3e6" }, { "deprecated": false, "signature_type": "Function", "target": { "file": "drivers/infiniband/hw/cxgb4/restrack.c", "function": "c4iw_fill_res_cm_id_entry" }, "signature_version": "v1", "digest": { "length": 1675.0, "function_hash": "76540015817032289103756019958224497507" }, "id": "CVE-2023-53476-dd5628fb", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@4ca446b127c568b59cb8d9748b6f70499624bb18" } ] }