Answer in brief
CVE-2023-53804 records a High severity (CVSS 7.8) vulnerability in nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2023-53804 records a High severity (CVSS 7.8) vulnerability in nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <f31e18131ee2ce80a4da5c808221d25b1ae9ad6d || >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <2a782ea8ebd712a458466e3103e2881b4f886cb5 || >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <116d53f09ff52e6f98e3fe1f85d8898d6ba26c68 || >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <6b4205ea97901f822004e6c8d59484ccfda03faa || >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <b8427b8522d9ede53015ba45a9978ba68d1162f5 || >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <acc2a40e428f12780004e1e9fce4722d88f909fd || >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <fb8e8d58f116d069e5939e1f786ac84e7fa4533e || >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <9b5a04ac3ad9898c4745cba46ea26de74ba56a8e | f31e18131ee2ce80a4da5c808221d25b1ae9ad6d, 2a782ea8ebd712a458466e3103e2881b4f886cb5, 116d53f09ff52e6f98e3fe1f85d8898d6ba26c68, 6b4205ea97901f822004e6c8d59484ccfda03faa, b8427b8522d9ede53015ba45a9978ba68d1162f5, acc2a40e428f12780004e1e9fce4722d88f909fd, fb8e8d58f116d069e5939e1f786ac84e7fa4533e, 9b5a04ac3ad9898c4745cba46ea26de74ba56a8e |
| Linux/Linuxgeneric | 2.6.37 | Not reported |
Published upstream
Dec 9, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() During unmount process of nilfs2, nothing holds nilfs_root structure after nilfs2 detaches its writer in nilfs_detach_log_writer(). However, since nilfs_evict_inode() uses nilfs_root for some cleanup operations, it may cause use-after-free read if inodes are left in "garbage_list" and released by nilfs_dispose_list() at the end of nilfs_detach_log_writer(). Fix this issue by modifying nilfs_evict_inode() to only clear inode without additional metadata changes that use nilfs_root if the file system is degraded to read-only or the writer is detached.
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <f31e18131ee2ce80a4da5c808221d25b1ae9ad6d || >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <2a782ea8ebd712a458466e3103e2881b4f886cb5 || >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <116d53f09ff52e6f98e3fe1f85d8898d6ba26c68 || >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <6b4205ea97901f822004e6c8d59484ccfda03faa || >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <b8427b8522d9ede53015ba45a9978ba68d1162f5 || >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <acc2a40e428f12780004e1e9fce4722d88f909fd || >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <fb8e8d58f116d069e5939e1f786ac84e7fa4533e || >=e912a5b66837ee89fb025e67b5efeaa11930c2ce <9b5a04ac3ad9898c4745cba46ea26de74ba56a8e | f31e18131ee2ce80a4da5c808221d25b1ae9ad6d, 2a782ea8ebd712a458466e3103e2881b4f886cb5, 116d53f09ff52e6f98e3fe1f85d8898d6ba26c68, 6b4205ea97901f822004e6c8d59484ccfda03faa, b8427b8522d9ede53015ba45a9978ba68d1162f5, acc2a40e428f12780004e1e9fce4722d88f909fd, fb8e8d58f116d069e5939e1f786ac84e7fa4533e, 9b5a04ac3ad9898c4745cba46ea26de74ba56a8e |
| Linux/Linuxgeneric | 2.6.37 | Not reported |
Published upstream
Dec 9, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode() During unmount process of nilfs2, nothing holds nilfs_root structure after nilfs2 detaches its writer in nilfs_detach_log_writer(). However, since nilfs_evict_inode() uses nilfs_root for some cleanup operations, it may cause use-after-free read if inodes are left in "garbage_list" and released by nilfs_dispose_list() at the end of nilfs_detach_log_writer(). Fix this issue by modifying nilfs_evict_inode() to only clear inode without additional metadata changes that use nilfs_root if the file system is degraded to read-only or the writer is detached.
Quoted source text, attributed separately from HOL analysis.