| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "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": "61d8658b4a435eac729966cc94cdda077a8df5cd", |
| "lessThan": "a6362a737572f66051deb7637f3f77ddf7a4402f", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "61d8658b4a435eac729966cc94cdda077a8df5cd", |
| "lessThan": "11014efcec378bb0050a6cf08eaf375e3693400a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "61d8658b4a435eac729966cc94cdda077a8df5cd", |
| "lessThan": "73578af92a0fae6609b955fcc9113e50e413c80f", |
| "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": "semver" |
| }, |
| { |
| "version": "5.10.40", |
| "lessThanOrEqual": "5.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.12.7", |
| "lessThanOrEqual": "5.12.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "5.13", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.11", |
| "versionEndExcluding": "5.10.40" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.11", |
| "versionEndExcluding": "5.12.7" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "4.11", |
| "versionEndExcluding": "5.13" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "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-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2021-47077", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
