CVE-2022-49167

{"id": "CVE-2022-49167", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"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"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "published": "2025-02-26T07:00:53.837", "references": [{"url": "https://git.kernel.org/stable/c/4a4ceb2b990771c374d85d496a1a45255dde48e3", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/987b5df1d10355d377315a26e7fb6c72ded83c9f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/f9f15de85d74e7eef021af059ca53a15f041cdd8", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: do not double complete bio on errors during compressed reads\n\nI hit some weird panics while fixing up the error handling from\nbtrfs_lookup_bio_sums(). Turns out the compression path will complete\nthe bio we use if we set up any of the compression bios and then return\nan error, and then btrfs_submit_data_bio() will also call bio_endio() on\nthe bio.\n\nFix this by making btrfs_submit_compressed_read() responsible for\ncalling bio_endio() on the bio if there are any errors. Currently it\nwas only doing it if we created the compression bios, otherwise it was\ndepending on btrfs_submit_data_bio() to do the right thing. This\ncreates the above problem, so fix up btrfs_submit_compressed_read() to\nalways call bio_endio() in case of an error, and then simply return from\nbtrfs_submit_data_bio() if we had to call\nbtrfs_submit_compressed_read()."}, {"lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: no completar dos veces la biograf\u00eda en caso de errores durante lecturas comprimidas Me encontr\u00e9 con algunos p\u00e1nicos extra\u00f1os mientras arreglaba la gesti\u00f3n de errores de btrfs_lookup_bio_sums(). Resulta que la ruta de compresi\u00f3n completar\u00e1 la biograf\u00eda que usamos si configuramos alguna de las biograf\u00edas de compresi\u00f3n y luego devolvemos un error, y luego btrfs_submit_data_bio() tambi\u00e9n llamar\u00e1 a bio_endio() en la biograf\u00eda. Arregle esto haciendo que btrfs_submit_compressed_read() sea responsable de llamar a bio_endio() en la biograf\u00eda si hay alg\u00fan error. Actualmente solo lo hac\u00eda si cre\u00e1bamos la biograf\u00eda de compresi\u00f3n, de lo contrario depend\u00eda de btrfs_submit_data_bio() para hacer lo correcto. Esto crea el problema mencionado anteriormente, as\u00ed que corrija btrfs_submit_compressed_read() para que siempre llame a bio_endio() en caso de error, y luego simplemente regrese de btrfs_submit_data_bio() si tuvi\u00e9ramos que llamar a btrfs_submit_compressed_read()."}], "lastModified": "2025-10-21T17:13:31.160", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "20C43679-0439-405A-B97F-685BEE50613B", "versionEndExcluding": "5.16.19", "versionStartIncluding": "5.16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "210C679C-CF84-44A3-8939-E629C87E54BF", "versionEndExcluding": "5.17.2", "versionStartIncluding": "5.17"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}