{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-21T14:46:31.803","vulnerabilities":[{"cve":{"id":"CVE-2022-49613","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","published":"2025-02-26T07:01:36.747","lastModified":"2025-10-23T12:08:40.867","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nserial: 8250: Fix PM usage_count for console handover\n\nWhen console is enabled, univ8250_console_setup() calls\nserial8250_console_setup() before .dev is set to uart_port. Therefore,\nit will not call pm_runtime_get_sync(). Later, when the actual driver\nis going to take over univ8250_console_exit() is called. As .dev is\nalready set, serial8250_console_exit() makes pm_runtime_put_sync() call\nwith usage count being zero triggering PM usage count warning\n(extra debug for univ8250_console_setup(), univ8250_console_exit(), and\nserial8250_register_ports()):\n\n[    0.068987] univ8250_console_setup ttyS0 nodev\n[    0.499670] printk: console [ttyS0] enabled\n[    0.717955] printk: console [ttyS0] printing thread started\n[    1.960163] serial8250_register_ports assigned dev for ttyS0\n[    1.976830] printk: console [ttyS0] disabled\n[    1.976888] printk: console [ttyS0] printing thread stopped\n[    1.977073] univ8250_console_exit ttyS0 usage:0\n[    1.977075] serial8250 serial8250: Runtime PM usage count underflow!\n[    1.977429] dw-apb-uart.6: ttyS0 at MMIO 0x4010006000 (irq = 33, base_baud = 115200) is a 16550A\n[    1.977812] univ8250_console_setup ttyS0 usage:2\n[    1.978167] printk: console [ttyS0] printing thread started\n[    1.978203] printk: console [ttyS0] enabled\n\nTo fix the issue, call pm_runtime_get_sync() in\nserial8250_register_ports() as soon as .dev is set for an uart_port\nif it has console enabled.\n\nThis problem became apparent only recently because 82586a721595 (\"PM:\nruntime: Avoid device usage count underflows\") added the warning\nprintout. I confirmed this problem also occurs with v5.18 (w/o the\nwarning printout, obviously)."},{"lang":"es","value":"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: serial: 8250: Se ha corregido el problema de uso de PM para la transferencia de consola. Cuando la consola está habilitada, univ8250_console_setup() calls serial8250_console_setup() before .dev is set to uart_port. Therefore, it will not call pm_runtime_get_sync(). Later, when the actual driver is going to take over univ8250_console_exit() is called. As .dev is already set, serial8250_console_exit() makes pm_runtime_put_sync() call with usage count being zero triggering PM usage count warning (extra debug for univ8250_console_setup(), univ8250_console_exit(), and serial8250_register_ports()): [ 0.068987] univ8250_console_setup ttyS0 nodev [ 0.499670] printk: console [ttyS0] enabled [ 0.717955] printk: console [ttyS0] printing thread started [ 1.960163] serial8250_register_ports assigned dev for ttyS0 [ 1.976830] printk: console [ttyS0] disabled [ 1.976888] printk: console [ttyS0] printing thread stopped [ 1.977073] univ8250_console_exit ttyS0 usage:0 [ 1.977075] serial8250 serial8250: Runtime PM usage count underflow! [ 1.977429] dw-apb-uart.6: ttyS0 at MMIO 0x4010006000 (irq = 33, base_baud = 115200) is a 16550A [ 1.977812] univ8250_console_setup ttyS0 usage:2 [ 1.978167] printk: console [ttyS0] printing thread started [ 1.978203] printk: console [ttyS0] enabled To fix the issue, call pm_runtime_get_sync() in serial8250_register_ports() as soon as .dev is set for an uart_port if it has console enabled. This problem became apparent only recently because 82586a721595 (\"PM: runtime: Avoid device usage count underflows\") agregó la impresión de advertencia. Confirmé que este problema también ocurre con v5.18 (sin la impresión de advertencia, obviamente)."}],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}]},"weaknesses":[{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"NVD-CWE-noinfo"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.7","versionEndExcluding":"5.10.132","matchCriteriaId":"C5519065-BBA0-42D6-919C-0A3E4C42A0E4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.56","matchCriteriaId":"AF59CE2F-BA66-4BFD-83AB-4576F3D1B49A"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"5.18.13","matchCriteriaId":"640221A7-96EE-4B48-8FE1-BA810131789B"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*","matchCriteriaId":"A8C30C2D-F82D-4D37-AB48-D76ABFBD5377"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*","matchCriteriaId":"BF8547FC-C849-4F1B-804B-A93AE2F04A92"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*","matchCriteriaId":"F3068028-F453-4A1C-B80F-3F5609ACEF60"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.19:rc4:*:*:*:*:*:*","matchCriteriaId":"2E9C0DB0-D349-489F-A3D6-B77214E93A8A"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.19:rc5:*:*:*:*:*:*","matchCriteriaId":"1A0DE3B7-0FFB-45AA-9BD6-19870CA7C6FD"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:5.19:rc6:*:*:*:*:*:*","matchCriteriaId":"00AE778B-BAEE-49EB-9F84-003B73D7862A"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/190ce5cdc55d1b66ea582ac2be6fd5a72e3cc486","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/5df66302f03f87ae8953785a882d78e911f00c55","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/d9cb6fabc90102f9e61fe35bd0160db88f4f53b4","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]},{"url":"https://git.kernel.org/stable/c/f9b11229b79c0fb2100b5bb4628a101b1d37fbf6","source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":["Patch"]}]}}]}