{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-21753", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-12-29T08:45:45.760Z", "datePublished": "2025-02-27T02:12:23.235Z", "dateUpdated": "2026-05-12T12:03:36.932Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T21:05:45.922Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix use-after-free when attempting to join an aborted transaction\n\nWhen we are trying to join the current transaction and if it's aborted,\nwe read its 'aborted' field after unlocking fs_info->trans_lock and\nwithout holding any extra reference count on it. This means that a\nconcurrent task that is aborting the transaction may free the transaction\nbefore we read its 'aborted' field, leading to a use-after-free.\n\nFix this by reading the 'aborted' field while holding fs_info->trans_lock\nsince any freeing task must first acquire that lock and set\nfs_info->running_transaction to NULL before freeing the transaction.\n\nThis was reported by syzbot and Dmitry with the following stack traces\nfrom KASAN:\n\n ==================================================================\n BUG: KASAN: slab-use-after-free in join_transaction+0xd9b/0xda0 fs/btrfs/transaction.c:278\n Read of size 4 at addr ffff888011839024 by task kworker/u4:9/1128\n\n CPU: 0 UID: 0 PID: 1128 Comm: kworker/u4:9 Not tainted 6.13.0-rc7-syzkaller-00019-gc45323b7560e #0\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014\n Workqueue: events_unbound btrfs_async_reclaim_data_space\n Call Trace:\n \n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:378 [inline]\n print_report+0x169/0x550 mm/kasan/report.c:489\n kasan_report+0x143/0x180 mm/kasan/report.c:602\n join_transaction+0xd9b/0xda0 fs/btrfs/transaction.c:278\n start_transaction+0xaf8/0x1670 fs/btrfs/transaction.c:697\n flush_space+0x448/0xcf0 fs/btrfs/space-info.c:803\n btrfs_async_reclaim_data_space+0x159/0x510 fs/btrfs/space-info.c:1321\n process_one_work kernel/workqueue.c:3236 [inline]\n process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317\n worker_thread+0x870/0xd30 kernel/workqueue.c:3398\n kthread+0x2f0/0x390 kernel/kthread.c:389\n ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\n \n\n Allocated by task 5315:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n poison_kmalloc_redzone mm/kasan/common.c:377 [inline]\n __kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394\n kasan_kmalloc include/linux/kasan.h:260 [inline]\n __kmalloc_cache_noprof+0x243/0x390 mm/slub.c:4329\n kmalloc_noprof include/linux/slab.h:901 [inline]\n join_transaction+0x144/0xda0 fs/btrfs/transaction.c:308\n start_transaction+0xaf8/0x1670 fs/btrfs/transaction.c:697\n btrfs_create_common+0x1b2/0x2e0 fs/btrfs/inode.c:6572\n lookup_open fs/namei.c:3649 [inline]\n open_last_lookups fs/namei.c:3748 [inline]\n path_openat+0x1c03/0x3590 fs/namei.c:3984\n do_filp_open+0x27f/0x4e0 fs/namei.c:4014\n do_sys_openat2+0x13e/0x1d0 fs/open.c:1402\n do_sys_open fs/open.c:1417 [inline]\n __do_sys_creat fs/open.c:1495 [inline]\n __se_sys_creat fs/open.c:1489 [inline]\n __x64_sys_creat+0x123/0x170 fs/open.c:1489\n do_syscall_x64 arch/x86/entry/common.c:52 [inline]\n do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\n Freed by task 5336:\n kasan_save_stack mm/kasan/common.c:47 [inline]\n kasan_save_track+0x3f/0x80 mm/kasan/common.c:68\n kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:582\n poison_slab_object mm/kasan/common.c:247 [inline]\n __kasan_slab_free+0x59/0x70 mm/kasan/common.c:264\n kasan_slab_free include/linux/kasan.h:233 [inline]\n slab_free_hook mm/slub.c:2353 [inline]\n slab_free mm/slub.c:4613 [inline]\n kfree+0x196/0x430 mm/slub.c:4761\n cleanup_transaction fs/btrfs/transaction.c:2063 [inline]\n btrfs_commit_transaction+0x2c97/0x3720 fs/btrfs/transaction.c:2598\n insert_balance_item+0x1284/0x20b0 fs/btrfs/volumes.c:3757\n btrfs_balance+0x992/\n---truncated---" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/btrfs/transaction.c" ], "versions": [ { "version": "871383be592ba7e819d27556591e315a0df38cee", "lessThan": "cee55b1219568c80bf0d5dc55066e4a859baf753", "status": "affected", "versionType": "git" }, { "version": "871383be592ba7e819d27556591e315a0df38cee", "lessThan": "c7a53757717e68af94a56929d57f1e6daff220ec", "status": "affected", "versionType": "git" }, { "version": "871383be592ba7e819d27556591e315a0df38cee", "lessThan": "7e954b6bb95d67ae4d1a20e9cfd83c182cf929bc", "status": "affected", "versionType": "git" }, { "version": "871383be592ba7e819d27556591e315a0df38cee", "lessThan": "6ba4663ada6c6315af23a6669d386146634808ec", "status": "affected", "versionType": "git" }, { "version": "871383be592ba7e819d27556591e315a0df38cee", "lessThan": "8f5cff471039caa2b088060c074c2bf2081bcb01", "status": "affected", "versionType": "git" }, { "version": "871383be592ba7e819d27556591e315a0df38cee", "lessThan": "86d71a026a7f63da905db9add845c8ee88801eca", "status": "affected", "versionType": "git" }, { "version": "871383be592ba7e819d27556591e315a0df38cee", "lessThan": "ce628048390dad80320d5a1f74de6ca1e1be91e7", "status": "affected", "versionType": "git" }, { "version": "871383be592ba7e819d27556591e315a0df38cee", "lessThan": "e2f0943cf37305dbdeaf9846e3c941451bcdef63", "status": "affected", "versionType": "git" } ] }, { "product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/btrfs/transaction.c" ], "versions": [ { "version": "3.4", "status": "affected" }, { "version": "0", "lessThan": "3.4", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.291", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.235", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.179", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.129", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.78", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.14", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.13.3", "lessThanOrEqual": "6.13.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.14", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.4", "versionEndExcluding": "5.4.291" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.4", "versionEndExcluding": "5.10.235" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.4", "versionEndExcluding": "5.15.179" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.4", "versionEndExcluding": "6.1.129" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.4", "versionEndExcluding": "6.6.78" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.4", "versionEndExcluding": "6.12.14" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.4", "versionEndExcluding": "6.13.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.4", "versionEndExcluding": "6.14" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/cee55b1219568c80bf0d5dc55066e4a859baf753" }, { "url": "https://git.kernel.org/stable/c/c7a53757717e68af94a56929d57f1e6daff220ec" }, { "url": "https://git.kernel.org/stable/c/7e954b6bb95d67ae4d1a20e9cfd83c182cf929bc" }, { "url": "https://git.kernel.org/stable/c/6ba4663ada6c6315af23a6669d386146634808ec" }, { "url": "https://git.kernel.org/stable/c/8f5cff471039caa2b088060c074c2bf2081bcb01" }, { "url": "https://git.kernel.org/stable/c/86d71a026a7f63da905db9add845c8ee88801eca" }, { "url": "https://git.kernel.org/stable/c/ce628048390dad80320d5a1f74de6ca1e1be91e7" }, { "url": "https://git.kernel.org/stable/c/e2f0943cf37305dbdeaf9846e3c941451bcdef63" } ], "title": "btrfs: fix use-after-free when attempting to join an aborted transaction", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2025-21753", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2025-02-27T18:14:22.911957Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-416", "description": "CWE-416 Use After Free" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-02-27T18:22:29.598Z" } }, { "title": "CVE Program Container", "references": [ { "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html" }, { "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html" } ], "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2025-11-03T19:36:58.333Z" } }, { "x_adpType": "supplier", "providerMetadata": { "orgId": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "shortName": "siemens-SADP", "dateUpdated": "2026-05-12T12:03:36.932Z" }, "affected": [ { "vendor": "Siemens", "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem", "versions": [ { "status": "affected", "version": "0", "lessThan": "*", "versionType": "custom" } ], "defaultStatus": "unknown" } ], "references": [ { "url": "https://cert-portal.siemens.com/productcert/html/ssa-265688.html" } ] } ] } }