Answer in brief
CVE-2024-47699 records a Unknown severity vulnerability in nilfs2: fix potential null-ptr-deref in nilfs_btree_insert(). 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 | >=17c76b0104e4a6513983777e1a17e0297a12b0c4 <2b78e9df10fb7f4e9d3d7a18417dd72fbbc1dfd0 || >=17c76b0104e4a6513983777e1a17e0297a12b0c4 <1d94dbdfbb64cc48d10dec65cc3c4fbf2497b343 || >=17c76b0104e4a6513983777e1a17e0297a12b0c4 <24bf40740a3da6b4056721da34997ae6938f3da1 || >=17c76b0104e4a6513983777e1a17e0297a12b0c4 <73d23ecf234b7a6d47fb883f2dabe10e3230b31d || >=17c76b0104e4a6513983777e1a17e0297a12b0c4 <f68523e0f26faade18833fbef577a4295d8e2c94 || >=17c76b0104e4a6513983777e1a17e0297a12b0c4 <21839b6fbc3c41b3e374ecbdb0cabbbb2c53cf34 || >=17c76b0104e4a6513983777e1a17e0297a12b0c4 <db73500d3f0e558eb642aae1d4782e7726b4a03f || >=17c76b0104e4a6513983777e1a17e0297a12b0c4 <3644554d308ddf2669e459a1551a7edf60b2d62b || >=17c76b0104e4a6513983777e1a17e0297a12b0c4 <9403001ad65ae4f4c5de368bdda3a0636b51d51a | 2b78e9df10fb7f4e9d3d7a18417dd72fbbc1dfd0, 1d94dbdfbb64cc48d10dec65cc3c4fbf2497b343, 24bf40740a3da6b4056721da34997ae6938f3da1, 73d23ecf234b7a6d47fb883f2dabe10e3230b31d, f68523e0f26faade18833fbef577a4295d8e2c94, 21839b6fbc3c41b3e374ecbdb0cabbbb2c53cf34, db73500d3f0e558eb642aae1d4782e7726b4a03f, 3644554d308ddf2669e459a1551a7edf60b2d62b, 9403001ad65ae4f4c5de368bdda3a0636b51d51a |
| Linux/Linuxgeneric | 2.6.30 | 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: nilfs2: fix potential null-ptr-deref in nilfs_btree_insert() Patch series "nilfs2: fix potential issues with empty b-tree nodes". This series addresses three potential issues with empty b-tree nodes that can occur with corrupted filesystem images, including one recently discovered by syzbot. This patch (of 3): If a b-tree is broken on the device, and the b-tree height is greater than 2 (the level of the root node is greater than 1) even if the number of child nodes of the b-tree root is 0, a NULL pointer dereference occurs in nilfs_btree_prepare_insert(), which is called from nilfs_btree_insert(). This is because, when the number of child nodes of the b-tree root is 0, nilfs_btree_do_lookup() does not set the block buffer head in any of path[x].bp_bh, leaving it as the initial value of NULL, but if the level of the b-tree root node is greater than 1, nilfs_btree_get_nonroot_node(), which accesses the buffer memory of path[x].bp_bh, is called. Fix this issue by adding a check to nilfs_btree_root_broken(), which performs sanity checks when reading the root node from the device, to detect this inconsistency. Thanks to Lizhi Xu for trying to solve the bug and clarifying the cause early on.
Quoted source text, attributed separately from HOL analysis.