{"id":"CVE-2022-49298","state":"PUBLISHED","title":"staging: rtl8712: fix uninit-value in r871xu_drv_init()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8712: fix uninit-value in r871xu_drv_init()\n\nWhen 'tmpU1b' returns from r8712_read8(padapter, EE_9346CR) is 0,\n'mac[6]' will not be initialized.\n\nBUG: KMSAN: uninit-value in r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541\n r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541\n usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396\n really_probe+0x653/0x14b0 drivers/base/dd.c:596\n __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752\n driver_probe_device drivers/base/dd.c:782 [inline]\n __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899\n bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427\n __device_attach+0x593/0x8e0 drivers/base/dd.c:970\n device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017\n bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487\n device_add+0x1fff/0x26e0 drivers/base/core.c:3405\n usb_set_configuration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170\n usb_generic_driver_probe+0x13c/0x300 drivers/usb/core/generic.c:238\n usb_probe_device+0x309/0x570 drivers/usb/core/driver.c:293\n really_probe+0x653/0x14b0 drivers/base/dd.c:596\n __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752\n driver_probe_device drivers/base/dd.c:782 [inline]\n __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899\n bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427\n __device_attach+0x593/0x8e0 drivers/base/dd.c:970\n device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017\n bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487\n device_add+0x1fff/0x26e0 drivers/base/core.c:3405\n usb_new_device+0x1b8e/0x2950 drivers/usb/core/hub.c:2566\n hub_port_connect drivers/usb/core/hub.c:5358 [inline]\n hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]\n port_event drivers/usb/core/hub.c:5660 [inline]\n hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5742\n process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307\n worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454\n kthread+0x3c7/0x500 kernel/kthread.c:377\n ret_from_fork+0x1f/0x30\n\nLocal variable mac created at:\n r871xu_drv_init+0x1771/0x3070 drivers/staging/rtl8712/usb_intf.c:394\n usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396\n\nKMSAN: uninit-value in r871xu_drv_init\nhttps://syzkaller.appspot.com/bug?id=3cd92b1d85428b128503bfa7a250294c9ae00bd8","publishedAt":"2025-02-26T02:01:27.111Z","updatedAt":"2026-05-11T18:56:59.214Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"0b7371a22489cbb2e8e826ca03fb5ce92afb04fe","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"277faa442fe0c59f418ac53f47a78e1266addd65","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"a6535d00a9d54ce1c2a8d86a85001ffb6844f9b2","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"52a0d88c328098b4e9fb8f2f3877fec0eff4104b","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"ff727ab0b7d7a56b5ef281f12abd00c4b85894e9","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"f36e754a1f0bafb9feeea63463de78080acb6de0","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"76a964ad0ea8f2b10abd69a7532e174a28258283","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"70df04433fd351ba72bc635bd0b5fe443d9ac964","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"0458e5428e5e959d201a40ffe71d762a79ecedc4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/rtl8712/usb_intf.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.37","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.37","versionType":"semver"},{"version":"4.9.318","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.283","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.247","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.198","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.122","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.47","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.17.15","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18.4","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/rtl8712/usb_intf.c"]}],"references":["https://git.kernel.org/stable/c/0b7371a22489cbb2e8e826ca03fb5ce92afb04fe","https://git.kernel.org/stable/c/277faa442fe0c59f418ac53f47a78e1266addd65","https://git.kernel.org/stable/c/a6535d00a9d54ce1c2a8d86a85001ffb6844f9b2","https://git.kernel.org/stable/c/52a0d88c328098b4e9fb8f2f3877fec0eff4104b","https://git.kernel.org/stable/c/ff727ab0b7d7a56b5ef281f12abd00c4b85894e9","https://git.kernel.org/stable/c/f36e754a1f0bafb9feeea63463de78080acb6de0","https://git.kernel.org/stable/c/76a964ad0ea8f2b10abd69a7532e174a28258283","https://git.kernel.org/stable/c/70df04433fd351ba72bc635bd0b5fe443d9ac964","https://git.kernel.org/stable/c/0458e5428e5e959d201a40ffe71d762a79ecedc4"],"weaknesses":["CWE-908"],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/49xxx/CVE-2022-49298.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-49298","state":"PUBLISHED","datePublished":"2025-02-26T02:01:27.111Z","dateUpdated":"2026-05-11T18:56:59.214Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-02-26T01:49:39.302Z"},"containers":{"cna":{"title":"staging: rtl8712: fix uninit-value in r871xu_drv_init()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8712: fix uninit-value in r871xu_drv_init()\n\nWhen 'tmpU1b' returns from r8712_read8(padapter, EE_9346CR) is 0,\n'mac[6]' will not be initialized.\n\nBUG: KMSAN: uninit-value in r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541\n r871xu_drv_init+0x2d54/0x3070 drivers/staging/rtl8712/usb_intf.c:541\n usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396\n really_probe+0x653/0x14b0 drivers/base/dd.c:596\n __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752\n driver_probe_device drivers/base/dd.c:782 [inline]\n __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899\n bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427\n __device_attach+0x593/0x8e0 drivers/base/dd.c:970\n device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017\n bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487\n device_add+0x1fff/0x26e0 drivers/base/core.c:3405\n usb_set_configuration+0x37e9/0x3ed0 drivers/usb/core/message.c:2170\n usb_generic_driver_probe+0x13c/0x300 drivers/usb/core/generic.c:238\n usb_probe_device+0x309/0x570 drivers/usb/core/driver.c:293\n really_probe+0x653/0x14b0 drivers/base/dd.c:596\n __driver_probe_device+0x3e9/0x530 drivers/base/dd.c:752\n driver_probe_device drivers/base/dd.c:782 [inline]\n __device_attach_driver+0x79f/0x1120 drivers/base/dd.c:899\n bus_for_each_drv+0x2d6/0x3f0 drivers/base/bus.c:427\n __device_attach+0x593/0x8e0 drivers/base/dd.c:970\n device_initial_probe+0x4a/0x60 drivers/base/dd.c:1017\n bus_probe_device+0x17b/0x3e0 drivers/base/bus.c:487\n device_add+0x1fff/0x26e0 drivers/base/core.c:3405\n usb_new_device+0x1b8e/0x2950 drivers/usb/core/hub.c:2566\n hub_port_connect drivers/usb/core/hub.c:5358 [inline]\n hub_port_connect_change drivers/usb/core/hub.c:5502 [inline]\n port_event drivers/usb/core/hub.c:5660 [inline]\n hub_event+0x58e3/0x89e0 drivers/usb/core/hub.c:5742\n process_one_work+0xdb6/0x1820 kernel/workqueue.c:2307\n worker_thread+0x10b3/0x21e0 kernel/workqueue.c:2454\n kthread+0x3c7/0x500 kernel/kthread.c:377\n ret_from_fork+0x1f/0x30\n\nLocal variable mac created at:\n r871xu_drv_init+0x1771/0x3070 drivers/staging/rtl8712/usb_intf.c:394\n usb_probe_interface+0xf19/0x1600 drivers/usb/core/driver.c:396\n\nKMSAN: uninit-value in r871xu_drv_init\nhttps://syzkaller.appspot.com/bug?id=3cd92b1d85428b128503bfa7a250294c9ae00bd8"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"0b7371a22489cbb2e8e826ca03fb5ce92afb04fe","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"277faa442fe0c59f418ac53f47a78e1266addd65","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"a6535d00a9d54ce1c2a8d86a85001ffb6844f9b2","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"52a0d88c328098b4e9fb8f2f3877fec0eff4104b","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"ff727ab0b7d7a56b5ef281f12abd00c4b85894e9","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"f36e754a1f0bafb9feeea63463de78080acb6de0","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"76a964ad0ea8f2b10abd69a7532e174a28258283","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"70df04433fd351ba72bc635bd0b5fe443d9ac964","versionType":"git"},{"version":"2865d42c78a9121caad52cb02d1fbb7f5cdbc4ef","status":"affected","lessThan":"0458e5428e5e959d201a40ffe71d762a79ecedc4","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/rtl8712/usb_intf.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.37","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.37","versionType":"semver"},{"version":"4.9.318","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.283","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.247","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.198","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.122","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.47","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.17.15","status":"unaffected","lessThanOrEqual":"5.17.*","versionType":"semver"},{"version":"5.18.4","status":"unaffected","lessThanOrEqual":"5.18.*","versionType":"semver"},{"version":"5.19","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/staging/rtl8712/usb_intf.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0b7371a22489cbb2e8e826ca03fb5ce92afb04fe"},{"url":"https://git.kernel.org/stable/c/277faa442fe0c59f418ac53f47a78e1266addd65"},{"url":"https://git.kernel.org/stable/c/a6535d00a9d54ce1c2a8d86a85001ffb6844f9b2"},{"url":"https://git.kernel.org/stable/c/52a0d88c328098b4e9fb8f2f3877fec0eff4104b"},{"url":"https://git.kernel.org/stable/c/ff727ab0b7d7a56b5ef281f12abd00c4b85894e9"},{"url":"https://git.kernel.org/stable/c/f36e754a1f0bafb9feeea63463de78080acb6de0"},{"url":"https://git.kernel.org/stable/c/76a964ad0ea8f2b10abd69a7532e174a28258283"},{"url":"https://git.kernel.org/stable/c/70df04433fd351ba72bc635bd0b5fe443d9ac964"},{"url":"https://git.kernel.org/stable/c/0458e5428e5e959d201a40ffe71d762a79ecedc4"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T18:56:59.214Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"4.9.318"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"4.14.283"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"4.19.247"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"5.4.198"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"5.10.122"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"5.15.47"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"5.17.15"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"5.18.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.37","versionEndExcluding":"5.19"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2022-49298","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:44:56.175459Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-908","lang":"en","type":"CWE","description":"CWE-908 Use of Uninitialized Resource"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T19:46:59.578Z"}}]}}}