GHSA-43G8-FHX4-JF78
Vulnerability from github – Published: 2026-09-16 12:30 – Updated: 2026-09-16 15:30In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: edif: Fix NULL pointer deref in RX SA delete check
qla_chk_edif_rx_sa_delete_pending() obtains the SCSI command via GET_CMD_SP(sp) and immediately dereferences cmd->sc_data_direction. That command pointer can be NULL: the firmware may post a status completion for a command that has already been returned or aborted. The caller qla2x00_status_entry() acknowledges this on the very same status path, re-fetching GET_CMD_SP(sp) and bailing out with the "Command already returned" message when it is NULL -- but that check runs only after qla_chk_edif_rx_sa_delete_pending() has already dereferenced the pointer, so a NULL cmd crashes the kernel in interrupt context.
Return early when cmd is NULL, before touching cmd->sc_data_direction.
{
"affected": [],
"aliases": [
"CVE-2026-89863"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-16T11:16:54Z",
"severity": "HIGH"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: edif: Fix NULL pointer deref in RX SA delete check\n\nqla_chk_edif_rx_sa_delete_pending() obtains the SCSI command via\nGET_CMD_SP(sp) and immediately dereferences cmd-\u003esc_data_direction.\nThat command pointer can be NULL: the firmware may post a status\ncompletion for a command that has already been returned or aborted. The\ncaller qla2x00_status_entry() acknowledges this on the very same status\npath, re-fetching GET_CMD_SP(sp) and bailing out with the \"Command\nalready returned\" message when it is NULL -- but that check runs only\nafter qla_chk_edif_rx_sa_delete_pending() has already dereferenced the\npointer, so a NULL cmd crashes the kernel in interrupt context.\n\nReturn early when cmd is NULL, before touching cmd-\u003esc_data_direction.",
"id": "GHSA-43g8-fhx4-jf78",
"modified": "2026-09-16T15:30:59Z",
"published": "2026-09-16T12:30:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89863"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2191b0034a2f1307d421782e6eceddf8eec9e7f6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/75fd6d041c4a325ae37f4683e6678d3015988bb0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/94bfb61478bcb207d27f8cd24fd231421059519f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/96eb8a3fc9f7fe7ba32679fcf1d2fd7d251e7a8b"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c20ee380ca59c5a8646750c4849969a815924e2e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/de0c8ef3b900c5e971c82ef38c6f5c22c5f3d8c1"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e479e9b148456905d12711411484b94083c8ff58"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
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