Review reviewHigh

CVE-2024-26793

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: gtp: fix use-after-free and null-ptr-deref in gtp_newlink() The gtp_link_ops operations structure for the subsystem must be registered after registering the gtp_net_ops pernet operations structure. Syzkaller hit 'general protection fault in gtp_genl_dump_pdp' bug: [ 1010.702740] gtp: GTP module unloaded [ 1010.715877] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN NOPTI [ 1010.715888] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 1010.715895] C...

CVSS
7.8
EPSS
0.29%
21.2% percentile
CISA KEV
Not listed
Published
2024.04.04
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.29%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: gtp: fix use-after-free and null-ptr-deref in gtp_newlink() The gtp_link_ops operations structure for the subsystem must be registered after registering the gtp_net_ops pernet operations structure. Syzkaller hit 'general protection fault in gtp_genl_dump_pdp' bug: [ 1010.702740] gtp: GTP module unloaded [ 1010.715877] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN NOPTI [ 1010.715888] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 1010.715895] C...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 459aa660eb1d8ce67080da1983bb81d716aa5a69 < 01129059d5141d62fae692f7a336ae3bc712d3eb, >= 459aa660eb1d8ce67080da1983bb81d716aa5a69 < ec92aa2cab6f0048f10d6aa4f025c5885cb1a1b6, >= 459aa660eb1d8ce67080da1983bb81d716aa5a69 < e668b92a3a01429923fd5ca13e99642aab47de69, >= 459aa660eb1d8ce67080da1983bb81d716aa5a69 < 9376d059a705c5dfaac566c2d09891242013ae16, >= 459aa660eb1d8ce67080da1983bb81d716aa5a69 < abd32d7f5c0294c1b2454c5a3b13b18446bac627, >= 459aa660eb1d8ce67080da1983bb81d716aa5a69 < 93dd420bc41531c9a31498b9538ca83ba6ec191e, >= 459aa660eb1d8ce67080da1983bb81d716aa5a69 < 5366969a19a8a0d2ffb3d27ef6e8905e5e4216f8, >= 459aa660eb1d8ce67080da1983bb81d716aa5a69 < 616d82c3cfa2a2146dd7e3ae47bda7e877ee549e, >= 4.7, >= 4.7 < 4.19.309, >= 4.20 < 5.4.271, >= 5.5 < 5.10.212, >= 5.11 < 5.15.151, >= 5.16 < 6.1.81, >= 6.2 < 6.6.21, >= 6.7 < 6.7.9, 6.8
Fixed versions
4.19.309, 5.4.271, 5.10.212, 5.15.151, 6.1.81, 6.6.21, 6.7.9

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-416, CWE-476