{"id":"CVE-2026-46046","summary":"ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()\n\nThe commit c8e008b60492 (\"ext4: ignore xattrs past end\")\nintroduced a refcount leak in when block_csum is false.\n\next4_xattr_inode_dec_ref_all() calls ext4_get_inode_loc() to\nget iloc.bh, but never releases it with brelse().","modified":"2026-11-13T04:04:15.255291545Z","published":"2026-05-27T12:57:02.610Z","related":["SUSE-SU-2026:22742-1","SUSE-SU-2026:22769-1","SUSE-SU-2026:22809-1","SUSE-SU-2026:22810-1","SUSE-SU-2026:22812-1","SUSE-SU-2026:22835-1","SUSE-SU-2026:22903-1","SUSE-SU-2026:22904-1","SUSE-SU-2026:3130-1","SUSE-SU-2026:3166-1","openSUSE-SU-2026:10954-1","openSUSE-SU-2026:21388-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46046.json"},"references":[{"type":"WEB","url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html"},{"type":"WEB","url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html"},{"type":"WEB","url":"https://cert-portal.siemens.com/productcert/html/ssa-784472.html"},{"type":"WEB","url":"https://git.kernel.org/stable/c/097227f1ffe1a85bc3c359f81c71e3d40e06e920"},{"type":"WEB","url":"https://git.kernel.org/stable/c/153ab2c52355fbebcae622db8e7b506492c73a29"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1bc1107a3a403a6d440673ed6666f7b07ef868a8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1e6b0a69bf2c9c819255c7566e4355536d81d9cf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/77d059519382bd66283e6a4e83ee186e87e7708f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b706d00206a9e82362a9633efbd8b5775650169b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dd98a5603a212ea9c96c6982ccdbcc748fdb9a56"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f072906688933bf47fabbaf63560be03357c8298"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46046.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46046"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3"},{"fixed":"dd98a5603a212ea9c96c6982ccdbcc748fdb9a56"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f737418b6de31c962c7192777ee4018906975383"},{"fixed":"153ab2c52355fbebcae622db8e7b506492c73a29"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"cf9291a3449b04688b81e32621e88de8f4314b54"},{"fixed":"b706d00206a9e82362a9633efbd8b5775650169b"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"362a90cecd36e8a5c415966d0b75b04a0270e4dd"},{"fixed":"1bc1107a3a403a6d440673ed6666f7b07ef868a8"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"eb59cc31b6ea076021d14b04e7faab1636b87d0e"},{"fixed":"097227f1ffe1a85bc3c359f81c71e3d40e06e920"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c8e008b60492cf6fd31ef127aea6d02fd3d314cd"},{"fixed":"1e6b0a69bf2c9c819255c7566e4355536d81d9cf"},{"fixed":"f072906688933bf47fabbaf63560be03357c8298"},{"fixed":"77d059519382bd66283e6a4e83ee186e87e7708f"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6aff941cb0f7d0c897c3698ad2e30672709135e3"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"3bc6317033f365ce578eb6039445fb66162722fd"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"836e625b03a666cf93ff5be328c8cb30336db872"}]}],"versions":["v5.10.257","v5.10.256","v5.10.255","v5.10.254","v5.10.253","v5.10.252","v5.10.251","v5.10.250","v5.10.249","v5.10.248","v5.10.247","v5.10.246","v5.10.245","v5.10.244","v5.10.243","v5.10.242","v5.10.241","v5.10.240","v5.10.239","v5.10.238","v5.10.237","v5.15.208","v5.15.207","v5.15.206","v5.15.205","v5.15.204","v5.15.203","v5.15.202","v5.15.201","v5.15.200","v5.15.199","v5.15.198","v5.15.197","v5.15.196","v5.15.195","v5.15.194","v5.15.193","v5.15.192","v5.15.191","v5.15.190","v5.15.189","v5.15.188","v5.15.187","v5.15.186","v5.15.185","v5.15.184","v5.15.183","v5.15.182","v5.15.181","v6.1.174","v6.1.173","v6.1.172","v6.1.171","v6.1.170","v6.1.169","v6.1.168","v6.1.167","v6.1.166","v6.1.165","v6.1.164","v6.1.163","v6.1.162","v6.1.161","v6.1.160","v6.1.159","v6.1.158","v6.1.157","v6.1.156","v6.1.155","v6.1.154","v6.1.153","v6.1.152","v6.1.151","v6.1.150","v6.1.149","v6.1.148","v6.1.147","v6.1.146","v6.1.145","v6.1.144","v6.1.143","v6.1.142","v6.1.141","v6.1.140","v6.1.139","v6.1.138","v6.1.137","v6.1.136","v6.1.135","v6.6.139","v6.6.138","v6.6.137","v6.6.136","v6.6.135","v6.6.134","v6.6.133","v6.6.132","v6.6.131","v6.6.130","v6.6.129","v6.6.128","v6.6.127","v6.6.126","v6.6.125","v6.6.124","v6.6.123","v6.6.122","v6.6.121","v6.6.120"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