{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2021-47077", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-29T22:33:44.297Z", "datePublished": "2024-03-01T21:15:14.030Z", "dateUpdated": "2024-09-11T17:33:44.268Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:01:43.585Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qedf: Add pointer checks in qedf_update_link_speed()\n\nThe following trace was observed:\n\n [ 14.042059] Call Trace:\n [ 14.042061] <IRQ>\n [ 14.042068] qedf_link_update+0x144/0x1f0 [qedf]\n [ 14.042117] qed_link_update+0x5c/0x80 [qed]\n [ 14.042135] qed_mcp_handle_link_change+0x2d2/0x410 [qed]\n [ 14.042155] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042170] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042186] ? qed_rd+0x13/0x40 [qed]\n [ 14.042205] qed_mcp_handle_events+0x437/0x690 [qed]\n [ 14.042221] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042239] qed_int_sp_dpc+0x3a6/0x3e0 [qed]\n [ 14.042245] tasklet_action_common.isra.14+0x5a/0x100\n [ 14.042250] __do_softirq+0xe4/0x2f8\n [ 14.042253] irq_exit+0xf7/0x100\n [ 14.042255] do_IRQ+0x7f/0xd0\n [ 14.042257] common_interrupt+0xf/0xf\n [ 14.042259] </IRQ>\n\nAPI qedf_link_update() is getting called from QED but by that time\nshost_data is not initialised. This results in a NULL pointer dereference\nwhen we try to dereference shost_data while updating supported_speeds.\n\nAdd a NULL pointer check before dereferencing shost_data."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/scsi/qedf/qedf_main.c"], "versions": [{"version": "61d8658b4a43", "lessThan": "a6362a737572", "status": "affected", "versionType": "git"}, {"version": "61d8658b4a43", "lessThan": "11014efcec37", "status": "affected", "versionType": "git"}, {"version": "61d8658b4a43", "lessThan": "73578af92a0f", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/scsi/qedf/qedf_main.c"], "versions": [{"version": "4.11", "status": "affected"}, {"version": "0", "lessThan": "4.11", "status": "unaffected", "versionType": "custom"}, {"version": "5.10.40", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.12.7", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "custom"}, {"version": "5.13", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "references": [{"url": "https://git.kernel.org/stable/c/a6362a737572f66051deb7637f3f77ddf7a4402f"}, {"url": "https://git.kernel.org/stable/c/11014efcec378bb0050a6cf08eaf375e3693400a"}, {"url": "https://git.kernel.org/stable/c/73578af92a0fae6609b955fcc9113e50e413c80f"}], "title": "scsi: qedf: Add pointer checks in qedf_update_link_speed()", "x_generator": {"engine": "bippy-a5840b7849dd"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:39.828Z"}, "title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/a6362a737572f66051deb7637f3f77ddf7a4402f", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/11014efcec378bb0050a6cf08eaf375e3693400a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/73578af92a0fae6609b955fcc9113e50e413c80f", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47077", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:56:57.690041Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T17:33:44.268Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CVE Program Container", "references": [{"url": "https://git.kernel.org/stable/c/a6362a737572f66051deb7637f3f77ddf7a4402f", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/11014efcec378bb0050a6cf08eaf375e3693400a", "tags": ["x_transferred"]}, {"url": "https://git.kernel.org/stable/c/73578af92a0fae6609b955fcc9113e50e413c80f", "tags": ["x_transferred"]}], "providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:39.828Z"}}, {"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2021-47077", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2024-09-10T15:56:57.690041Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-09-11T12:42:18.416Z"}}], "cna": {"title": "scsi: qedf: Add pointer checks in qedf_update_link_speed()", "affected": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "61d8658b4a43", "lessThan": "a6362a737572", "versionType": "git"}, {"status": "affected", "version": "61d8658b4a43", "lessThan": "11014efcec37", "versionType": "git"}, {"status": "affected", "version": "61d8658b4a43", "lessThan": "73578af92a0f", "versionType": "git"}], "programFiles": ["drivers/scsi/qedf/qedf_main.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.11"}, {"status": "unaffected", "version": "0", "lessThan": "4.11", "versionType": "custom"}, {"status": "unaffected", "version": "5.10.40", "versionType": "custom", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.12.7", "versionType": "custom", "lessThanOrEqual": "5.12.*"}, {"status": "unaffected", "version": "5.13", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/scsi/qedf/qedf_main.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/a6362a737572f66051deb7637f3f77ddf7a4402f"}, {"url": "https://git.kernel.org/stable/c/11014efcec378bb0050a6cf08eaf375e3693400a"}, {"url": "https://git.kernel.org/stable/c/73578af92a0fae6609b955fcc9113e50e413c80f"}], "x_generator": {"engine": "bippy-a5840b7849dd"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qedf: Add pointer checks in qedf_update_link_speed()\n\nThe following trace was observed:\n\n [ 14.042059] Call Trace:\n [ 14.042061] <IRQ>\n [ 14.042068] qedf_link_update+0x144/0x1f0 [qedf]\n [ 14.042117] qed_link_update+0x5c/0x80 [qed]\n [ 14.042135] qed_mcp_handle_link_change+0x2d2/0x410 [qed]\n [ 14.042155] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042170] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042186] ? qed_rd+0x13/0x40 [qed]\n [ 14.042205] qed_mcp_handle_events+0x437/0x690 [qed]\n [ 14.042221] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042239] qed_int_sp_dpc+0x3a6/0x3e0 [qed]\n [ 14.042245] tasklet_action_common.isra.14+0x5a/0x100\n [ 14.042250] __do_softirq+0xe4/0x2f8\n [ 14.042253] irq_exit+0xf7/0x100\n [ 14.042255] do_IRQ+0x7f/0xd0\n [ 14.042257] common_interrupt+0xf/0xf\n [ 14.042259] </IRQ>\n\nAPI qedf_link_update() is getting called from QED but by that time\nshost_data is not initialised. This results in a NULL pointer dereference\nwhen we try to dereference shost_data while updating supported_speeds.\n\nAdd a NULL pointer check before dereferencing shost_data."}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2024-05-29T05:01:43.585Z"}}}, "cveMetadata": {"cveId": "CVE-2021-47077", "state": "PUBLISHED", "dateUpdated": "2024-09-11T17:33:44.268Z", "dateReserved": "2024-02-29T22:33:44.297Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2024-03-01T21:15:14.030Z", "assignerShortName": "Linux"}, "dataVersion": "5.1"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qedf: Add pointer checks in qedf_update_link_speed()\n\nThe following trace was observed:\n\n [ 14.042059] Call Trace:\n [ 14.042061] <IRQ>\n [ 14.042068] qedf_link_update+0x144/0x1f0 [qedf]\n [ 14.042117] qed_link_update+0x5c/0x80 [qed]\n [ 14.042135] qed_mcp_handle_link_change+0x2d2/0x410 [qed]\n [ 14.042155] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042170] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042186] ? qed_rd+0x13/0x40 [qed]\n [ 14.042205] qed_mcp_handle_events+0x437/0x690 [qed]\n [ 14.042221] ? qed_set_ptt+0x70/0x80 [qed]\n [ 14.042239] qed_int_sp_dpc+0x3a6/0x3e0 [qed]\n [ 14.042245] tasklet_action_common.isra.14+0x5a/0x100\n [ 14.042250] __do_softirq+0xe4/0x2f8\n [ 14.042253] irq_exit+0xf7/0x100\n [ 14.042255] do_IRQ+0x7f/0xd0\n [ 14.042257] common_interrupt+0xf/0xf\n [ 14.042259] </IRQ>\n\nAPI qedf_link_update() is getting called from QED but by that time\nshost_data is not initialised. This results in a NULL pointer dereference\nwhen we try to dereference shost_data while updating supported_speeds.\n\nAdd a NULL pointer check before dereferencing shost_data."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: qedf: Agregar comprobaciones de puntero en qedf_update_link_speed() Se observ\u00f3 el siguiente seguimiento: [ 14.042059] Seguimiento de llamadas: [ 14.042061] [ 14.042068] qedf_link_update+0x144/0x1f0 [ qedf] [14.042117] qed_link_update+0x5c/0x80 [qed] [14.042135] qed_mcp_handle_link_change+0x2d2/0x410 [qed] [14.042155]? qed_set_ptt+0x70/0x80 [qed] [14.042170]? qed_set_ptt+0x70/0x80 [qed] [14.042186]? qed_rd+0x13/0x40 [qed] [ 14.042205] qed_mcp_handle_events+0x437/0x690 [qed] [ 14.042221] ? qed_set_ptt+0x70/0x80 [qed] [ 14.042239] qed_int_sp_dpc+0x3a6/0x3e0 [qed] [ 14.042245] tasklet_action_common.isra.14+0x5a/0x100 [ 14.042250] __do_softirq+0xe4/0x2f8 [ 14.042253] salida_irq+0xf7/0x100 [ 14.042255] do_IRQ+0x7f/0xd0 [ 14.042257] common_interrupt+0xf/0xf [ 14.042259] API qedf_link_update() est\u00e1 siendo llamada desde QED pero en ese momento shost_data no est\u00e1 inicializado. Esto da como resultado una desreferencia del puntero NULL cuando intentamos desreferenciar shost_data mientras actualizamos las velocidades_compatibles. Agregue una verificaci\u00f3n de puntero NULL antes de eliminar la referencia a shost_data."}], "id": "CVE-2021-47077", "lastModified": "2024-03-01T22:22:25.913", "metrics": {}, "published": "2024-03-01T22:15:47.283", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/11014efcec378bb0050a6cf08eaf375e3693400a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/73578af92a0fae6609b955fcc9113e50e413c80f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a6362a737572f66051deb7637f3f77ddf7a4402f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: scsi: qedf: Add pointer checks in qedf_update_link_speed()", "id": "2267527", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2267527"}, "csaw": false, "cvss3": {"cvss3_base_score": "4.4", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nscsi: qedf: Add pointer checks in qedf_update_link_speed()\nThe following trace was observed:\n[ 14.042059] Call Trace:\n[ 14.042061] <IRQ>\n[ 14.042068] qedf_link_update+0x144/0x1f0 [qedf]\n[ 14.042117] qed_link_update+0x5c/0x80 [qed]\n[ 14.042135] qed_mcp_handle_link_change+0x2d2/0x410 [qed]\n[ 14.042155] ? qed_set_ptt+0x70/0x80 [qed]\n[ 14.042170] ? qed_set_ptt+0x70/0x80 [qed]\n[ 14.042186] ? qed_rd+0x13/0x40 [qed]\n[ 14.042205] qed_mcp_handle_events+0x437/0x690 [qed]\n[ 14.042221] ? qed_set_ptt+0x70/0x80 [qed]\n[ 14.042239] qed_int_sp_dpc+0x3a6/0x3e0 [qed]\n[ 14.042245] tasklet_action_common.isra.14+0x5a/0x100\n[ 14.042250] __do_softirq+0xe4/0x2f8\n[ 14.042253] irq_exit+0xf7/0x100\n[ 14.042255] do_IRQ+0x7f/0xd0\n[ 14.042257] common_interrupt+0xf/0xf\n[ 14.042259] </IRQ>\nAPI qedf_link_update() is getting called from QED but by that time\nshost_data is not initialised. This results in a NULL pointer dereference\nwhen we try to dereference shost_data while updating supported_speeds.\nAdd a NULL pointer check before dereferencing shost_data."], "name": "CVE-2021-47077", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2024-03-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-47077\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-47077\nhttps://lore.kernel.org/linux-cve-announce/2024030142-CVE-2021-47077-994b@gregkh/T/#u"], "threat_severity": "Low"}