CVE-2024-48881 (GCVE-0-2024-48881)

Vulnerability from cvelistv5 – Published: 2025-01-11 12:25 – Updated: 2025-11-03 20:40
VLAI?
Title
bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again
Summary
In the Linux kernel, the following vulnerability has been resolved: bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again Commit 028ddcac477b ("bcache: Remove unnecessary NULL point check in node allocations") leads a NULL pointer deference in cache_set_flush(). 1721 if (!IS_ERR_OR_NULL(c->root)) 1722 list_add(&c->root->list, &c->btree_cache); >From the above code in cache_set_flush(), if previous registration code fails before allocating c->root, it is possible c->root is NULL as what it is initialized. __bch_btree_node_alloc() never returns NULL but c->root is possible to be NULL at above line 1721. This patch replaces IS_ERR() by IS_ERR_OR_NULL() to fix this.
CWE
  • CWE-476 - NULL Pointer Dereference
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: 0729029e647234fa1a94376b6edffec5c2cd75f6 , < 4379c5828492a4c2a651c8f826a01453bd2b80b0 (git)
Affected: db9439cef0b5efccf8021fe89f4953e0f901e85b , < 336e30f32ae7c043fde0f6fa21586ff30bea9fe2 (git)
Affected: 991e9c186a8ac6ab272a86e0ddc6f9733c38b867 , < fb5fee35bdd18316a84b5f30881a24e1415e1464 (git)
Affected: 68118c339c6e1e16ae017bef160dbe28a27ae9c8 , < 5202391970ffbf81975251b3526b890ba027b715 (git)
Affected: 028ddcac477b691dd9205c92f991cc15259d033e , < cc05aa2c0117e20fa25a3c0d915f98b8f2e78667 (git)
Affected: 028ddcac477b691dd9205c92f991cc15259d033e , < 5e0e913624bcd24f3de414475018d3023f060ee1 (git)
Affected: 028ddcac477b691dd9205c92f991cc15259d033e , < b2e382ae12a63560fca35050498e19e760adf8c0 (git)
Affected: fe75e8a0c20127a8dc95704f1a7ad6b82c9a0ef8 (git)
Affected: 0cabf9e164660e8d66c4810396046383a1110a69 (git)
Create a notification for this product.
    Linux Linux Affected: 6.5
Unaffected: 0 , < 6.5 (semver)
Unaffected: 5.4.287 , ≤ 5.4.* (semver)
Unaffected: 5.10.231 , ≤ 5.10.* (semver)
Unaffected: 5.15.174 , ≤ 5.15.* (semver)
Unaffected: 6.1.120 , ≤ 6.1.* (semver)
Unaffected: 6.6.66 , ≤ 6.6.* (semver)
Unaffected: 6.12.5 , ≤ 6.12.* (semver)
Unaffected: 6.13 , ≤ * (original_commit_for_fix)
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Show details on NVD website

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Detection rules are retrieved from Rulezet.

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