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.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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| Source | ID | Title |
|---|---|---|
Debian DLA |
DLA-4075-1 | linux security update |
Debian DLA |
DLA-4076-1 | linux-6.1 security update |
Ubuntu USN |
USN-7379-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7379-2 | Linux kernel (Raspberry Pi) vulnerabilities |
Ubuntu USN |
USN-7380-1 | Linux kernel (Low Latency) vulnerabilities |
Ubuntu USN |
USN-7381-1 | Linux kernel (Low Latency) vulnerabilities |
Ubuntu USN |
USN-7382-1 | Linux kernel (OEM) vulnerabilities |
Ubuntu USN |
USN-7387-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7387-2 | Linux kernel (FIPS) vulnerabilities |
Ubuntu USN |
USN-7387-3 | Linux kernel (Real-time) vulnerabilities |
Ubuntu USN |
USN-7388-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7389-1 | Linux kernel (NVIDIA Tegra) vulnerabilities |
Ubuntu USN |
USN-7390-1 | Linux kernel (Xilinx ZynqMP) vulnerabilities |
Ubuntu USN |
USN-7391-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7392-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7392-2 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7392-3 | Linux kernel (AWS) vulnerabilities |
Ubuntu USN |
USN-7392-4 | Linux kernel (AWS FIPS) vulnerabilities |
Ubuntu USN |
USN-7393-1 | Linux kernel (FIPS) vulnerabilities |
Ubuntu USN |
USN-7401-1 | Linux kernel (AWS) vulnerabilities |
Ubuntu USN |
USN-7407-1 | Linux kernel (HWE) vulnerabilities |
Ubuntu USN |
USN-7413-1 | Linux kernel (IoT) vulnerabilities |
Ubuntu USN |
USN-7421-1 | Linux kernel (Azure) vulnerabilities |
Ubuntu USN |
USN-7449-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7449-2 | Linux kernel (HWE) vulnerabilities |
Ubuntu USN |
USN-7450-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7451-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7452-1 | Linux kernel vulnerabilities |
Ubuntu USN |
USN-7453-1 | Linux kernel (Real-time) vulnerabilities |
Ubuntu USN |
USN-7458-1 | Linux kernel (IBM) vulnerabilities |
Ubuntu USN |
USN-7459-1 | Linux kernel (Intel IoTG) vulnerabilities |
Ubuntu USN |
USN-7459-2 | Linux kernel (GCP) vulnerabilities |
Ubuntu USN |
USN-7463-1 | Linux kernel (IBM) vulnerabilities |
Ubuntu USN |
USN-7468-1 | Linux kernel (Azure, N-Series) vulnerabilities |
Ubuntu USN |
USN-7523-1 | Linux kernel (Raspberry Pi Real-time) vulnerabilities |
Ubuntu USN |
USN-7524-1 | Linux kernel (Raspberry Pi) vulnerabilities |
Ubuntu USN |
USN-7539-1 | Linux kernel (Raspberry Pi) vulnerabilities |
Ubuntu USN |
USN-7540-1 | Linux kernel (Raspberry Pi) vulnerabilities |
Mon, 03 Nov 2025 21:30:00 +0000
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Wed, 01 Oct 2025 20:15:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Wed, 16 Jul 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
epss
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epss
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Thu, 13 Feb 2025 01:00:00 +0000
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threat_severity
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threat_severity
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Fri, 31 Jan 2025 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Linux
Linux linux Kernel |
|
| Weaknesses | CWE-476 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:* |
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| Vendors & Products |
Linux
Linux linux Kernel |
Tue, 14 Jan 2025 08:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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| Metrics |
threat_severity
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cvssV3_1
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Sat, 11 Jan 2025 12:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | bcache: revert replacing IS_ERR_OR_NULL with IS_ERR again | |
| References |
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|
Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-05-11T20:40:18.848Z
Reserved: 2025-01-09T09:50:31.739Z
Link: CVE-2024-48881
Updated: 2025-10-01T15:52:49.931Z
Status : Modified
Published: 2025-01-11T13:15:23.437
Modified: 2025-11-03T21:16:30.953
Link: CVE-2024-48881
OpenCVE Enrichment
No data.
Debian DLA
Ubuntu USN