{"id":"CVE-2026-23141","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: send: check for inline extents in range_is_hole_in_parent()\n\nBefore accessing the disk_bytenr field of a file extent item we need\nto check if we are dealing with…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: send: check for inline extents in range_is_hole_in_parent()\n\nBefore accessing the disk_bytenr field of a file extent item we need\nto check if we are dealing with…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 4.11, < 6.6.122","linux_kernel >= 6.7, < 6.12.67","linux_kernel >= 6.13, < 6.18.7","linux_kernel = 6.19"],"patched":["linux_kernel 6.18.7"],"published":"2026-02-14","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:18:43.237","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-23141","references":[{"url":"https://git.kernel.org/stable/c/08b096c1372cd69627f4f559fb47c9fb67a52b39","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/39f83f10772310ba4a77f2b5256aaf36994ef7e8","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/901e581bfc44d181f7d9c3f11880dac3e89deb2e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d948055bd46a9c14d1d4217aed65c5c258c32903","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/db00636643e66898d79f2530ac9c56ebd5eca369","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f2dc6ab3a14c2d2eb0b14783427eb9b03bf631c9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-784472.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00143,"epssPercentile":0.03244,"ingestedAt":"2026-10-15T03:30:12.834Z","slug":"CVE-2026-23141","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: send: check for inline extents in range_is_hole_in_parent()\n\nBefore accessing the disk_bytenr field of a file extent item we need\nto check if we are dealing with an inline extent.\nThis is because for inline extents their data starts at the offset of\nthe disk_bytenr field. So accessing the disk_bytenr\nmeans we are accessing inline data or in case the inline data is less\nthan 8 bytes we can actually cause an invalid\nmemory access if this inline extent item is the first item in the leaf\nor access metadata from other items.\n\n## Affected\n\n- `linux_kernel >= 4.11, < 6.6.122`\n- `linux_kernel >= 6.7, < 6.12.67`\n- `linux_kernel >= 6.13, < 6.18.7`\n- `linux_kernel = 6.19`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.18.7`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}