{"cve":"CVE-2021-47015","nvd":{"published":"2024-02-28T09:15:38.913","modified":"2026-06-17T04:16:11.523","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Fix RX consumer index logic in the error path.\n\nIn bnxt_rx_pkt(), the RX buffers are expected to complete in order.\nIf the RX consumer index indicates an out of order buffer completion,\nit means we are hitting a hardware bug and the driver will abort all\nremaining RX packets and reset the RX ring.  The RX consumer index\nthat we pass to bnxt_discard_rx() is not correct.  We should be\npassing the current index (tmp_raw_cons) instead of the old index\n(raw_cons).  This bug can cause us to be at the wrong index when\ntrying to abort the next RX packet.  It can crash like this:\n\n #0 [ffff9bbcdf5c39a8] machine_kexec at ffffffff9b05e007\n #1 [ffff9bbcdf5c3a00] __crash_kexec at ffffffff9b111232\n #2 [ffff9bbcdf5c3ad0] panic at ffffffff9b07d61e\n #3 [ffff9bbcdf5c3b50] oops_end at ffffffff9b030978\n #4 [ffff9bbcdf5c3b78] no_context at ffffffff9b06aaf0\n #5 [ffff9bbcdf5c3bd8] __bad_area_nosemaphore at ffffffff9b06ae2e\n #6 [ffff9bbcdf5c3c28] bad_area_nosemaphore at ffffffff9b06af24\n #7 [ffff9bbcdf5c3c38] __do_page_fault at ffffffff9b06b67e\n #8 [ffff9bbcdf5c3cb0] do_page_fault at ffffffff9b06bb12\n #9 [ffff9bbcdf5c3ce0] page_fault at ffffffff9bc015c5\n    [exception RIP: bnxt_rx_pkt+237]\n    RIP: ffffffffc0259cdd  RSP: ffff9bbcdf5c3d98  RFLAGS: 00010213\n    RAX: 000000005dd8097f  RBX: ffff9ba4cb11b7e0  RCX: ffffa923cf6e9000\n    RDX: 0000000000000fff  RSI: 0000000000000627  RDI: 0000000000001000\n    RBP: ffff9bbcdf5c3e60   R8: 0000000000420003   R9: 000000000000020d\n    R10: ffffa923cf6ec138  R11: ffff9bbcdf5c3e83  R12: ffff9ba4d6f928c0\n    R13: ffff9ba4cac28080  R14: ffff9ba4cb11b7f0  R15: ffff9ba4d5a30000\n    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":[],"references":["https://git.kernel.org/stable/c/3fbc5bc651d688fbea2a59cdc91520a2f5334d0a","https://git.kernel.org/stable/c/4fcaad2b7dac3f16704f8118c7e481024ddbd3ed","https://git.kernel.org/stable/c/b1523e4ba293b2a32d9fabaf70c1dcaa6e3e2847","https://git.kernel.org/stable/c/bbd6f0a948139970f4a615dff189d9a503681a39","https://git.kernel.org/stable/c/e187ef83c04a5d23e68d39cfdff1a1931e29890c"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:45:59.823092188+00:00"},"epss":{"cve":"CVE-2021-47015","score":0.0025,"percentile":0.16359,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}