Vulnerability-Lookup

GHSA-X2WH-V69V-X2W9

Vulnerability from github – Published: 2024-02-22 18:30 – Updated: 2024-03-18 18:32

Details

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

bpf: Fix re-attachment branch in bpf_tracing_prog_attach

The following case can cause a crash due to missing attach_btf:

1) load rawtp program 2) load fentry program with rawtp as target_fd 3) create tracing link for fentry program with target_fd = 0 4) repeat 3

In the end we have:

prog->aux->dst_trampoline == NULL
tgt_prog == NULL (because we did not provide target_fd to link_create)
prog->aux->attach_btf == NULL (the program was loaded with attach_prog_fd=X)
the program was loaded for tgt_prog but we have no way to find out which one

BUG: kernel NULL pointer dereference, address: 0000000000000058 Call Trace: ? __die+0x20/0x70 ? page_fault_oops+0x15b/0x430 ? fixup_exception+0x22/0x330 ? exc_page_fault+0x6f/0x170 ? asm_exc_page_fault+0x22/0x30 ? bpf_tracing_prog_attach+0x279/0x560 ? btf_obj_id+0x5/0x10 bpf_tracing_prog_attach+0x439/0x560 __sys_bpf+0x1cf4/0x2de0 __x64_sys_bpf+0x1c/0x30 do_syscall_64+0x41/0xf0 entry_SYSCALL_64_after_hwframe+0x6e/0x76

Return -EINVAL in this situation.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2024-26591"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-22T17:15:09Z",
    "severity": "MODERATE"
  },
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  "id": "GHSA-x2wh-v69v-x2w9",
  "modified": "2024-03-18T18:32:18Z",
  "published": "2024-02-22T18:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26591"
    },
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    },
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      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-26591 (GCVE-0-2024-26591)

Vulnerability from cvelistv5 – Published: 2024-02-22 16:21 – Updated: 2025-05-04 08:51

Title

bpf: Fix re-attachment branch in bpf_tracing_prog_attach

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix re-attachment branch in bpf_tracing_prog_attach The following case can cause a crash due to missing attach_btf: 1) load rawtp program 2) load fentry program with rawtp as target_fd 3) create tracing link for fentry program with target_fd = 0 4) repeat 3 In the end we have: - prog->aux->dst_trampoline == NULL - tgt_prog == NULL (because we did not provide target_fd to link_create) - prog->aux->attach_btf == NULL (the program was loaded with attach_prog_fd=X) - the program was loaded for tgt_prog but we have no way to find out which one BUG: kernel NULL pointer dereference, address: 0000000000000058 Call Trace: <TASK> ? __die+0x20/0x70 ? page_fault_oops+0x15b/0x430 ? fixup_exception+0x22/0x330 ? exc_page_fault+0x6f/0x170 ? asm_exc_page_fault+0x22/0x30 ? bpf_tracing_prog_attach+0x279/0x560 ? btf_obj_id+0x5/0x10 bpf_tracing_prog_attach+0x439/0x560 __sys_bpf+0x1cf4/0x2de0 __x64_sys_bpf+0x1c/0x30 do_syscall_64+0x41/0xf0 entry_SYSCALL_64_after_hwframe+0x6e/0x76 Return -EINVAL in this situation.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/a7b98aa10f895e256…
	https://git.kernel.org/stable/c/6cc9c0af0aa06f781…
	https://git.kernel.org/stable/c/8c8bcd45e9b10eef1…
	https://git.kernel.org/stable/c/50ae82f080cf87e84…
	https://git.kernel.org/stable/c/715d82ba636cb3629…

Impacted products

Vendor

Product

Version

Linux

Affected: f3a95075549e0e5c36db922caf86847db7a35403 , < a7b98aa10f895e2569403896f2d19b73b6c95653 (git)
Affected: f3a95075549e0e5c36db922caf86847db7a35403 , < 6cc9c0af0aa06f781fa515a1734b1a4239dfd2c0 (git)
Affected: f3a95075549e0e5c36db922caf86847db7a35403 , < 8c8bcd45e9b10eef12321f08d2e5be33d615509c (git)
Affected: f3a95075549e0e5c36db922caf86847db7a35403 , < 50ae82f080cf87e84828f066c31723b781d68f5b (git)
Affected: f3a95075549e0e5c36db922caf86847db7a35403 , < 715d82ba636cb3629a6e18a33bb9dbe53f9936ee (git)

Linux

Affected: 5.13
Unaffected: 0 , < 5.13 (semver)
Unaffected: 5.15.148 , ≤ 5.15.* (semver)
Unaffected: 6.1.75 , ≤ 6.1.* (semver)
Unaffected: 6.6.14 , ≤ 6.6.* (semver)
Unaffected: 6.7.2 , ≤ 6.7.* (semver)
Unaffected: 6.8 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-X2WH-V69V-X2W9

CVE-2024-26591 (GCVE-0-2024-26591)

Tags

Sightings

Nomenclature