Answer in brief
CVE-2024-49900 records a Unknown severity vulnerability in jfs: Fix uninit-value access of new_ea in ea_buffer. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. 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), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7b24d41d47a6805c45378debf8bd115675d41da8 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <dac398ed272a378d2f42ac68ae408333a51baf52 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8b1dcf25c26d42e4a68c4725ce52a0543c7878cc || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d7444f91a9f93eaa48827087ed0f3381c194181d || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6041536d18c5f51a84bc37cd568cbab61870031e || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c076b3746224982eebdba5c9e4b1467e146c0d64 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <7c244d5b48284a770d96ff703df2dfeadf804a73 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <8ad8b531de79c348bcb8133e7f5e827b884226af || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2b59ffad47db1c46af25ccad157bb3b25147c35c | 7b24d41d47a6805c45378debf8bd115675d41da8, dac398ed272a378d2f42ac68ae408333a51baf52, 8b1dcf25c26d42e4a68c4725ce52a0543c7878cc, d7444f91a9f93eaa48827087ed0f3381c194181d, 6041536d18c5f51a84bc37cd568cbab61870031e, c076b3746224982eebdba5c9e4b1467e146c0d64, 7c244d5b48284a770d96ff703df2dfeadf804a73, 8ad8b531de79c348bcb8133e7f5e827b884226af, 2b59ffad47db1c46af25ccad157bb3b25147c35c |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <V1.1.1 | V1.1.1 |
Published upstream
Oct 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
In the Linux kernel, the following vulnerability has been resolved: jfs: Fix uninit-value access of new_ea in ea_buffer syzbot reports that lzo1x_1_do_compress is using uninit-value: ===================================================== BUG: KMSAN: uninit-value in lzo1x_1_do_compress+0x19f9/0x2510 lib/lzo/lzo1x_compress.c:178 ... Uninit was stored to memory at: ea_put fs/jfs/xattr.c:639 [inline] ... Local variable ea_buf created at: __jfs_setxattr+0x5d/0x1ae0 fs/jfs/xattr.c:662 __jfs_xattr_set+0xe6/0x1f0 fs/jfs/xattr.c:934 ===================================================== The reason is ea_buf->new_ea is not initialized properly. Fix this by using memset to empty its content at the beginning in ea_get().
Quoted source text, attributed separately from HOL analysis.