{"api_version":"1","generated_at":"2026-08-22T21:53:15+00:00","cve":"CVE-2026-74722","urls":{"html":"https://cve.report/CVE-2026-74722","api":"https://cve.report/api/cve/CVE-2026-74722.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74722","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74722"},"summary":{"title":"btrfs: fix memory leak in btrfs_do_encoded_write()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix memory leak in btrfs_do_encoded_write()\n\nLocal fuzzing of 6.12.94 has found the following memory leak:\n\nUnreferenced object 0xffff888018050a80 (size 64):\n  comm \"syz.0.17\", pid 10297, jiffies 4294953601\n  hex dump (first 32 bytes):\n    00 10 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................\n    10 0a 05 18 80 88 ff ff 10 0a 05 18 80 88 ff ff  ................\n  backtrace (crc a8a6fc29):\n    kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline]\n    slab_post_alloc_hook mm/slub.c:4152 [inline]\n    slab_alloc_node mm/slub.c:4197 [inline]\n    __kmalloc_cache_noprof+0x168/0x2c0 mm/slub.c:4358\n    kmalloc_noprof include/linux/slab.h:878 [inline]\n    extent_changeset_alloc fs/btrfs/extent_io.h:207 [inline]\n    qgroup_reserve_data+0x1c5/0x7d0 fs/btrfs/qgroup.c:4305\n    btrfs_qgroup_reserve_data+0x2e/0xb0 fs/btrfs/qgroup.c:4355\n    btrfs_do_encoded_write+0x92e/0x1040 fs/btrfs/inode.c:9746\n    btrfs_encoded_write fs/btrfs/file.c:1482 [inline]\n    btrfs_do_write_iter+0x280/0x610 fs/btrfs/file.c:1507\n    btrfs_ioctl_encoded_write+0x3d6/0x490 fs/btrfs/ioctl.c:4738\n    btrfs_ioctl+0x6f9/0xc90 fs/btrfs/ioctl.c:-1\n    vfs_ioctl fs/ioctl.c:51 [inline]\n    __do_sys_ioctl fs/ioctl.c:906 [inline]\n    __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:892\n    do_syscall_x64 arch/x86/entry/common.c:47 [inline]\n    do_syscall_64+0xbe/0x1a0 arch/x86/entry/common.c:78\n    entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nUnreferenced object 0xffff888018050a00 (size 64):\n  comm \"syz.0.17\", pid 10297, jiffies 4294953601\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 ff 0f 00 00 00 00 00 00  ................\n    90 0a 05 18 80 88 ff ff 90 0a 05 18 80 88 ff ff  ................\n  backtrace (crc cb5c9580):\n    kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline]\n    slab_post_alloc_hook mm/slub.c:4152 [inline]\n    slab_alloc_node mm/slub.c:4197 [inline]\n    __kmalloc_cache_noprof+0x168/0x2c0 mm/slub.c:4358\n    kmalloc_noprof include/linux/slab.h:878 [inline]\n    kzalloc_noprof include/linux/slab.h:1014 [inline]\n    ulist_prealloc+0x9c/0x110 fs/btrfs/ulist.c:114\n    extent_changeset_prealloc fs/btrfs/extent_io.h:217 [inline]\n    __set_extent_bit+0x16b/0x1a70 fs/btrfs/extent-io-tree.c:1086\n    set_record_extent_bits+0x50/0x90 fs/btrfs/extent-io-tree.c:1821\n    qgroup_reserve_data+0x274/0x7d0 fs/btrfs/qgroup.c:4312\n    btrfs_qgroup_reserve_data+0x2e/0xb0 fs/btrfs/qgroup.c:4355\n    btrfs_do_encoded_write+0x92e/0x1040 fs/btrfs/inode.c:9746\n    btrfs_encoded_write fs/btrfs/file.c:1482 [inline]\n    btrfs_do_write_iter+0x280/0x610 fs/btrfs/file.c:1507\n    btrfs_ioctl_encoded_write+0x3d6/0x490 fs/btrfs/ioctl.c:4738\n    btrfs_ioctl+0x6f9/0xc90 fs/btrfs/ioctl.c:-1\n    vfs_ioctl fs/ioctl.c:51 [inline]\n    __do_sys_ioctl fs/ioctl.c:906 [inline]\n    __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:892\n    do_syscall_x64 arch/x86/entry/common.c:47 [inline]\n    do_syscall_64+0xbe/0x1a0 arch/x86/entry/common.c:78\n    entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFix this by freeing an extent changeset before returning from\nbtrfs_do_encoded_write().","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-22 16:16:47","updated_at":"2026-08-22 16:16:47"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/0f0da96ccb1b9f35f4d3d4540dcaab0969d9d6b0","name":"https://git.kernel.org/stable/c/0f0da96ccb1b9f35f4d3d4540dcaab0969d9d6b0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/24a8f2c29aebb753ccb962fbb25bae18d7978f6e","name":"https://git.kernel.org/stable/c/24a8f2c29aebb753ccb962fbb25bae18d7978f6e","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/20c0eeb4313f9f89d47b80b672b5846f9827cb31","name":"https://git.kernel.org/stable/c/20c0eeb4313f9f89d47b80b672b5846f9827cb31","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/60b50ceba6243802f8d2c0a9a7c2d549a93b1d64","name":"https://git.kernel.org/stable/c/60b50ceba6243802f8d2c0a9a7c2d549a93b1d64","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/d2a4e4e626b2f4670b69b430c357f03f53eb6632","name":"https://git.kernel.org/stable/c/d2a4e4e626b2f4670b69b430c357f03f53eb6632","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e2c7e88815edd5ecfb88e7660ab9fd42bda6bc47","name":"https://git.kernel.org/stable/c/e2c7e88815edd5ecfb88e7660ab9fd42bda6bc47","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74722","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74722","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22 0f0da96ccb1b9f35f4d3d4540dcaab0969d9d6b0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22 e2c7e88815edd5ecfb88e7660ab9fd42bda6bc47 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22 20c0eeb4313f9f89d47b80b672b5846f9827cb31 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22 24a8f2c29aebb753ccb962fbb25bae18d7978f6e git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22 60b50ceba6243802f8d2c0a9a7c2d549a93b1d64 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22 d2a4e4e626b2f4670b69b430c357f03f53eb6632 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.18","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.18 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.183 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.152 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.104 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.45 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.9 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/btrfs/inode.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"0f0da96ccb1b9f35f4d3d4540dcaab0969d9d6b0","status":"affected","version":"7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22","versionType":"git"},{"lessThan":"e2c7e88815edd5ecfb88e7660ab9fd42bda6bc47","status":"affected","version":"7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22","versionType":"git"},{"lessThan":"20c0eeb4313f9f89d47b80b672b5846f9827cb31","status":"affected","version":"7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22","versionType":"git"},{"lessThan":"24a8f2c29aebb753ccb962fbb25bae18d7978f6e","status":"affected","version":"7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22","versionType":"git"},{"lessThan":"60b50ceba6243802f8d2c0a9a7c2d549a93b1d64","status":"affected","version":"7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22","versionType":"git"},{"lessThan":"d2a4e4e626b2f4670b69b430c357f03f53eb6632","status":"affected","version":"7c0c7269f7b508ba6e4b063a9314d6bd1fb6db22","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/btrfs/inode.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.18"},{"lessThan":"5.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.183","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.152","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.104","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.45","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.9","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.183","versionStartIncluding":"5.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.152","versionStartIncluding":"5.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.104","versionStartIncluding":"5.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.45","versionStartIncluding":"5.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.9","versionStartIncluding":"5.18","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2","versionStartIncluding":"5.18","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix memory leak in btrfs_do_encoded_write()\n\nLocal fuzzing of 6.12.94 has found the following memory leak:\n\nUnreferenced object 0xffff888018050a80 (size 64):\n  comm \"syz.0.17\", pid 10297, jiffies 4294953601\n  hex dump (first 32 bytes):\n    00 10 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................\n    10 0a 05 18 80 88 ff ff 10 0a 05 18 80 88 ff ff  ................\n  backtrace (crc a8a6fc29):\n    kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline]\n    slab_post_alloc_hook mm/slub.c:4152 [inline]\n    slab_alloc_node mm/slub.c:4197 [inline]\n    __kmalloc_cache_noprof+0x168/0x2c0 mm/slub.c:4358\n    kmalloc_noprof include/linux/slab.h:878 [inline]\n    extent_changeset_alloc fs/btrfs/extent_io.h:207 [inline]\n    qgroup_reserve_data+0x1c5/0x7d0 fs/btrfs/qgroup.c:4305\n    btrfs_qgroup_reserve_data+0x2e/0xb0 fs/btrfs/qgroup.c:4355\n    btrfs_do_encoded_write+0x92e/0x1040 fs/btrfs/inode.c:9746\n    btrfs_encoded_write fs/btrfs/file.c:1482 [inline]\n    btrfs_do_write_iter+0x280/0x610 fs/btrfs/file.c:1507\n    btrfs_ioctl_encoded_write+0x3d6/0x490 fs/btrfs/ioctl.c:4738\n    btrfs_ioctl+0x6f9/0xc90 fs/btrfs/ioctl.c:-1\n    vfs_ioctl fs/ioctl.c:51 [inline]\n    __do_sys_ioctl fs/ioctl.c:906 [inline]\n    __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:892\n    do_syscall_x64 arch/x86/entry/common.c:47 [inline]\n    do_syscall_64+0xbe/0x1a0 arch/x86/entry/common.c:78\n    entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nUnreferenced object 0xffff888018050a00 (size 64):\n  comm \"syz.0.17\", pid 10297, jiffies 4294953601\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 ff 0f 00 00 00 00 00 00  ................\n    90 0a 05 18 80 88 ff ff 90 0a 05 18 80 88 ff ff  ................\n  backtrace (crc cb5c9580):\n    kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline]\n    slab_post_alloc_hook mm/slub.c:4152 [inline]\n    slab_alloc_node mm/slub.c:4197 [inline]\n    __kmalloc_cache_noprof+0x168/0x2c0 mm/slub.c:4358\n    kmalloc_noprof include/linux/slab.h:878 [inline]\n    kzalloc_noprof include/linux/slab.h:1014 [inline]\n    ulist_prealloc+0x9c/0x110 fs/btrfs/ulist.c:114\n    extent_changeset_prealloc fs/btrfs/extent_io.h:217 [inline]\n    __set_extent_bit+0x16b/0x1a70 fs/btrfs/extent-io-tree.c:1086\n    set_record_extent_bits+0x50/0x90 fs/btrfs/extent-io-tree.c:1821\n    qgroup_reserve_data+0x274/0x7d0 fs/btrfs/qgroup.c:4312\n    btrfs_qgroup_reserve_data+0x2e/0xb0 fs/btrfs/qgroup.c:4355\n    btrfs_do_encoded_write+0x92e/0x1040 fs/btrfs/inode.c:9746\n    btrfs_encoded_write fs/btrfs/file.c:1482 [inline]\n    btrfs_do_write_iter+0x280/0x610 fs/btrfs/file.c:1507\n    btrfs_ioctl_encoded_write+0x3d6/0x490 fs/btrfs/ioctl.c:4738\n    btrfs_ioctl+0x6f9/0xc90 fs/btrfs/ioctl.c:-1\n    vfs_ioctl fs/ioctl.c:51 [inline]\n    __do_sys_ioctl fs/ioctl.c:906 [inline]\n    __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:892\n    do_syscall_x64 arch/x86/entry/common.c:47 [inline]\n    do_syscall_64+0xbe/0x1a0 arch/x86/entry/common.c:78\n    entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFix this by freeing an extent changeset before returning from\nbtrfs_do_encoded_write()."}],"providerMetadata":{"dateUpdated":"2026-08-22T15:33:14.582Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/0f0da96ccb1b9f35f4d3d4540dcaab0969d9d6b0"},{"url":"https://git.kernel.org/stable/c/e2c7e88815edd5ecfb88e7660ab9fd42bda6bc47"},{"url":"https://git.kernel.org/stable/c/20c0eeb4313f9f89d47b80b672b5846f9827cb31"},{"url":"https://git.kernel.org/stable/c/24a8f2c29aebb753ccb962fbb25bae18d7978f6e"},{"url":"https://git.kernel.org/stable/c/60b50ceba6243802f8d2c0a9a7c2d549a93b1d64"},{"url":"https://git.kernel.org/stable/c/d2a4e4e626b2f4670b69b430c357f03f53eb6632"}],"title":"btrfs: fix memory leak in btrfs_do_encoded_write()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74722","datePublished":"2026-08-22T15:33:14.582Z","dateReserved":"2026-08-15T05:44:03.929Z","dateUpdated":"2026-08-22T15:33:14.582Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-22 16:16:47","lastModifiedDate":"2026-08-22 16:16:47","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74722","Ordinal":"1","Title":"btrfs: fix memory leak in btrfs_do_encoded_write()","CVE":"CVE-2026-74722","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74722","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix memory leak in btrfs_do_encoded_write()\n\nLocal fuzzing of 6.12.94 has found the following memory leak:\n\nUnreferenced object 0xffff888018050a80 (size 64):\n  comm \"syz.0.17\", pid 10297, jiffies 4294953601\n  hex dump (first 32 bytes):\n    00 10 00 00 00 00 00 00 01 00 00 00 00 00 00 00  ................\n    10 0a 05 18 80 88 ff ff 10 0a 05 18 80 88 ff ff  ................\n  backtrace (crc a8a6fc29):\n    kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline]\n    slab_post_alloc_hook mm/slub.c:4152 [inline]\n    slab_alloc_node mm/slub.c:4197 [inline]\n    __kmalloc_cache_noprof+0x168/0x2c0 mm/slub.c:4358\n    kmalloc_noprof include/linux/slab.h:878 [inline]\n    extent_changeset_alloc fs/btrfs/extent_io.h:207 [inline]\n    qgroup_reserve_data+0x1c5/0x7d0 fs/btrfs/qgroup.c:4305\n    btrfs_qgroup_reserve_data+0x2e/0xb0 fs/btrfs/qgroup.c:4355\n    btrfs_do_encoded_write+0x92e/0x1040 fs/btrfs/inode.c:9746\n    btrfs_encoded_write fs/btrfs/file.c:1482 [inline]\n    btrfs_do_write_iter+0x280/0x610 fs/btrfs/file.c:1507\n    btrfs_ioctl_encoded_write+0x3d6/0x490 fs/btrfs/ioctl.c:4738\n    btrfs_ioctl+0x6f9/0xc90 fs/btrfs/ioctl.c:-1\n    vfs_ioctl fs/ioctl.c:51 [inline]\n    __do_sys_ioctl fs/ioctl.c:906 [inline]\n    __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:892\n    do_syscall_x64 arch/x86/entry/common.c:47 [inline]\n    do_syscall_64+0xbe/0x1a0 arch/x86/entry/common.c:78\n    entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nUnreferenced object 0xffff888018050a00 (size 64):\n  comm \"syz.0.17\", pid 10297, jiffies 4294953601\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 ff 0f 00 00 00 00 00 00  ................\n    90 0a 05 18 80 88 ff ff 90 0a 05 18 80 88 ff ff  ................\n  backtrace (crc cb5c9580):\n    kmemleak_alloc_recursive include/linux/kmemleak.h:42 [inline]\n    slab_post_alloc_hook mm/slub.c:4152 [inline]\n    slab_alloc_node mm/slub.c:4197 [inline]\n    __kmalloc_cache_noprof+0x168/0x2c0 mm/slub.c:4358\n    kmalloc_noprof include/linux/slab.h:878 [inline]\n    kzalloc_noprof include/linux/slab.h:1014 [inline]\n    ulist_prealloc+0x9c/0x110 fs/btrfs/ulist.c:114\n    extent_changeset_prealloc fs/btrfs/extent_io.h:217 [inline]\n    __set_extent_bit+0x16b/0x1a70 fs/btrfs/extent-io-tree.c:1086\n    set_record_extent_bits+0x50/0x90 fs/btrfs/extent-io-tree.c:1821\n    qgroup_reserve_data+0x274/0x7d0 fs/btrfs/qgroup.c:4312\n    btrfs_qgroup_reserve_data+0x2e/0xb0 fs/btrfs/qgroup.c:4355\n    btrfs_do_encoded_write+0x92e/0x1040 fs/btrfs/inode.c:9746\n    btrfs_encoded_write fs/btrfs/file.c:1482 [inline]\n    btrfs_do_write_iter+0x280/0x610 fs/btrfs/file.c:1507\n    btrfs_ioctl_encoded_write+0x3d6/0x490 fs/btrfs/ioctl.c:4738\n    btrfs_ioctl+0x6f9/0xc90 fs/btrfs/ioctl.c:-1\n    vfs_ioctl fs/ioctl.c:51 [inline]\n    __do_sys_ioctl fs/ioctl.c:906 [inline]\n    __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:892\n    do_syscall_x64 arch/x86/entry/common.c:47 [inline]\n    do_syscall_64+0xbe/0x1a0 arch/x86/entry/common.c:78\n    entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFix this by freeing an extent changeset before returning from\nbtrfs_do_encoded_write().","Type":"Description","Title":"btrfs: fix memory leak in btrfs_do_encoded_write()"}]}}}