CVE-2024-36476

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2024-36476
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-36476.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-36476
Downstream
Related
Published
2025-01-15T13:10:20.507Z
Modified
2026-03-20T12:36:49.788831Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
RDMA/rtrs: Ensure 'ib_sge list' is accessible
Details

In the Linux kernel, the following vulnerability has been resolved:

RDMA/rtrs: Ensure 'ib_sge list' is accessible

Move the declaration of the 'ibsge list' variable outside the 'alwaysinvalidate' block to ensure it remains accessible for use throughout the function.

Previously, 'ibsge list' was declared within the 'alwaysinvalidate' block, limiting its accessibility, then caused a 'BUG: kernel NULL pointer dereference'[1]. ? __diebody.cold+0x19/0x27 ? pagefault_oops+0x15a/0x2d0 ? searchmoduleextables+0x19/0x60 ? searchbpfextables+0x5f/0x80 ? excpagefault+0x7e/0x180 ? asmexcpagefault+0x26/0x30 ? memcpyorig+0xd5/0x140 rxemrcopy+0x1c3/0x200 [rdmarxe] ? rxepoolgetindex+0x4b/0x80 [rdmarxe] copydata+0xa5/0x230 [rdmarxe] rxerequester+0xd9b/0xf70 [rdmarxe] ? finishtaskswitch.isra.0+0x99/0x2e0 rxesender+0x13/0x40 [rdmarxe] dotask+0x68/0x1e0 [rdmarxe] processonework+0x177/0x330 workerthread+0x252/0x390 ? __pfxworkerthread+0x10/0x10

This change ensures the variable is available for subsequent operations that require it.

[1] https://lore.kernel.org/linux-rdma/6a1f3e8f-deb0-49f9-bc69-a9b03ecfcda7@fujitsu.com/

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/36xxx/CVE-2024-36476.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
9cb837480424e78ed585376f944088246685aec3
Fixed
7eaa71f56a6f7ab87957213472dc6d4055862722
Fixed
143378075904e78b3b2a810099bcc3b3d82d762f
Fixed
32e1e748a85bd52b20b3857d80fd166d22fa455a
Fixed
b238f61cc394d5fef27b26d7d9aa383ebfddabb0
Fixed
6ffb5c1885195ae5211a12b4acd2d51843ca41b0
Fixed
fb514b31395946022f13a08e06a435f53cf9e8b3

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-36476.json"