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CVE-2024-49900 In the Linux kernel, the following vulnerability has been resolved: jfs: Fix uninit-value access of new_ea in…

Description

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().

Affected products and versions

Product Affected versions Fixed in
Linux 6.12 earliest → < 6.12 6.12
Linux 6.11 earliest → < 6.11.3 6.11.3
Linux 6.10 earliest → < 6.10.14 6.10.14
Linux 6.6 earliest → < 6.6.55 6.6.55
Linux 6.1 earliest → < 6.1.113 6.1.113
Linux 5.15 earliest → < 5.15.168 5.15.168
Linux 5.10 earliest → < 5.10.227 5.10.227
Linux 5.4 earliest → < 5.4.285 5.4.285
Linux 4.19 earliest → < 4.19.323 4.19.323
Show the 5 other branches
Product Affected versions Fixed in
Linux 2.6.12 No fix stated
RUGGEDCOM RST2428P Versions not published
SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family Versions not published
SCALANCE XCM-/XRM-/XCH-/XRH-300 family Versions not published
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem 1.1 earliest → < 1.1.1 1.1.1

References

Timeline

  1. Published
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