122 lines
6.5 KiB
JSON
122 lines
6.5 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-23041",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-01-13T15:37:45.944Z",
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"datePublished": "2026-02-04T16:00:24.710Z",
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"dateUpdated": "2026-05-11T21:58:51.518Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T21:58:51.518Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: Fix NULL pointer crash in bnxt_ptp_enable during error cleanup\n\nWhen bnxt_init_one() fails during initialization (e.g.,\nbnxt_init_int_mode returns -ENODEV), the error path calls\nbnxt_free_hwrm_resources() which destroys the DMA pool and sets\nbp->hwrm_dma_pool to NULL. Subsequently, bnxt_ptp_clear() is called,\nwhich invokes ptp_clock_unregister().\n\nSince commit a60fc3294a37 (\"ptp: rework ptp_clock_unregister() to\ndisable events\"), ptp_clock_unregister() now calls\nptp_disable_all_events(), which in turn invokes the driver's .enable()\ncallback (bnxt_ptp_enable()) to disable PTP events before completing the\nunregistration.\n\nbnxt_ptp_enable() attempts to send HWRM commands via bnxt_ptp_cfg_pin()\nand bnxt_ptp_cfg_event(), both of which call hwrm_req_init(). This\nfunction tries to allocate from bp->hwrm_dma_pool, causing a NULL\npointer dereference:\n\n bnxt_en 0000:01:00.0 (unnamed net_device) (uninitialized): bnxt_init_int_mode err: ffffffed\n KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f]\n Call Trace:\n __hwrm_req_init (drivers/net/ethernet/broadcom/bnxt/bnxt_hwrm.c:72)\n bnxt_ptp_enable (drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c:323 drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c:517)\n ptp_disable_all_events (drivers/ptp/ptp_chardev.c:66)\n ptp_clock_unregister (drivers/ptp/ptp_clock.c:518)\n bnxt_ptp_clear (drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c:1134)\n bnxt_init_one (drivers/net/ethernet/broadcom/bnxt/bnxt.c:16889)\n\nLines are against commit f8f9c1f4d0c7 (\"Linux 6.19-rc3\")\n\nFix this by clearing and unregistering ptp (bnxt_ptp_clear()) before\nfreeing HWRM resources."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/ethernet/broadcom/bnxt/bnxt.c"
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],
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"versions": [
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{
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"version": "a60fc3294a377204664b5484e4a487fa124155da",
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"lessThan": "0174d5466caefc22f03a36c43b2a3cce7e332627",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "a60fc3294a377204664b5484e4a487fa124155da",
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"lessThan": "3358995b1a7f9dcb52a56ec8251570d71024dad0",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/net/ethernet/broadcom/bnxt/bnxt.c"
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],
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"versions": [
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{
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"version": "6.18",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "6.18",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.6",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.18",
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"versionEndExcluding": "6.18.6"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.18",
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"versionEndExcluding": "6.19"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/0174d5466caefc22f03a36c43b2a3cce7e332627"
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},
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{
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"url": "https://git.kernel.org/stable/c/3358995b1a7f9dcb52a56ec8251570d71024dad0"
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}
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],
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"title": "bnxt_en: Fix NULL pointer crash in bnxt_ptp_enable during error cleanup",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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}
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}
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} |