CVE-2024-38588 (GCVE-0-2024-38588)

Vulnerability from cvelistv5 – Published: 2024-06-19 13:37 – Updated: 2025-11-03 20:38
VLAI?
Title
ftrace: Fix possible use-after-free issue in ftrace_location()
Summary
In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix possible use-after-free issue in ftrace_location() KASAN reports a bug: BUG: KASAN: use-after-free in ftrace_location+0x90/0x120 Read of size 8 at addr ffff888141d40010 by task insmod/424 CPU: 8 PID: 424 Comm: insmod Tainted: G W 6.9.0-rc2+ [...] Call Trace: <TASK> dump_stack_lvl+0x68/0xa0 print_report+0xcf/0x610 kasan_report+0xb5/0xe0 ftrace_location+0x90/0x120 register_kprobe+0x14b/0xa40 kprobe_init+0x2d/0xff0 [kprobe_example] do_one_initcall+0x8f/0x2d0 do_init_module+0x13a/0x3c0 load_module+0x3082/0x33d0 init_module_from_file+0xd2/0x130 __x64_sys_finit_module+0x306/0x440 do_syscall_64+0x68/0x140 entry_SYSCALL_64_after_hwframe+0x71/0x79 The root cause is that, in lookup_rec(), ftrace record of some address is being searched in ftrace pages of some module, but those ftrace pages at the same time is being freed in ftrace_release_mod() as the corresponding module is being deleted: CPU1 | CPU2 register_kprobes() { | delete_module() { check_kprobe_address_safe() { | arch_check_ftrace_location() { | ftrace_location() { | lookup_rec() // USE! | ftrace_release_mod() // Free! To fix this issue: 1. Hold rcu lock as accessing ftrace pages in ftrace_location_range(); 2. Use ftrace_location_range() instead of lookup_rec() in ftrace_location(); 3. Call synchronize_rcu() before freeing any ftrace pages both in ftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem().
Severity ?
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b , < eea46baf145150910ba134f75a67106ba2222c1b (git)
Affected: ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b , < 1880a324af1c95940a7c954b6b937e86844a33bd (git)
Affected: ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b , < 8ea8ef5e42173560ac510e92a1cc797ffeea8831 (git)
Affected: ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b , < dbff5f0bfb2416b8b55c105ddbcd4f885e98fada (git)
Affected: ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b , < 7b4881da5b19f65709f5c18c1a4d8caa2e496461 (git)
Affected: ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b , < 66df065b3106964e667b37bf8f7e55ec69d0c1f6 (git)
Affected: ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b , < 31310e373f4c8c74e029d4326b283e757edabc0b (git)
Affected: ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b , < e60b613df8b6253def41215402f72986fee3fc8d (git)
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    Linux Linux Affected: 3.7
Unaffected: 0 , < 3.7 (semver)
Unaffected: 5.4.286 , ≤ 5.4.* (semver)
Unaffected: 5.10.227 , ≤ 5.10.* (semver)
Unaffected: 5.15.162 , ≤ 5.15.* (semver)
Unaffected: 6.1.93 , ≤ 6.1.* (semver)
Unaffected: 6.6.33 , ≤ 6.6.* (semver)
Unaffected: 6.8.12 , ≤ 6.8.* (semver)
Unaffected: 6.9.3 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
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[{\"status\": \"affected\", \"version\": \"3.7\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.7\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.286\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.227\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.162\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.93\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.33\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.8.12\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.8.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.3\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"kernel/trace/ftrace.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/eea46baf145150910ba134f75a67106ba2222c1b\"}, {\"url\": \"https://git.kernel.org/stable/c/1880a324af1c95940a7c954b6b937e86844a33bd\"}, {\"url\": \"https://git.kernel.org/stable/c/8ea8ef5e42173560ac510e92a1cc797ffeea8831\"}, {\"url\": \"https://git.kernel.org/stable/c/dbff5f0bfb2416b8b55c105ddbcd4f885e98fada\"}, {\"url\": \"https://git.kernel.org/stable/c/7b4881da5b19f65709f5c18c1a4d8caa2e496461\"}, {\"url\": \"https://git.kernel.org/stable/c/66df065b3106964e667b37bf8f7e55ec69d0c1f6\"}, {\"url\": \"https://git.kernel.org/stable/c/31310e373f4c8c74e029d4326b283e757edabc0b\"}, {\"url\": \"https://git.kernel.org/stable/c/e60b613df8b6253def41215402f72986fee3fc8d\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nftrace: Fix possible use-after-free issue in ftrace_location()\\n\\nKASAN reports a bug:\\n\\n  BUG: KASAN: use-after-free in ftrace_location+0x90/0x120\\n  Read of size 8 at addr ffff888141d40010 by task insmod/424\\n  CPU: 8 PID: 424 Comm: insmod Tainted: G        W          6.9.0-rc2+\\n  [...]\\n  Call Trace:\\n   \u003cTASK\u003e\\n   dump_stack_lvl+0x68/0xa0\\n   print_report+0xcf/0x610\\n   kasan_report+0xb5/0xe0\\n   ftrace_location+0x90/0x120\\n   register_kprobe+0x14b/0xa40\\n   kprobe_init+0x2d/0xff0 [kprobe_example]\\n   do_one_initcall+0x8f/0x2d0\\n   do_init_module+0x13a/0x3c0\\n   load_module+0x3082/0x33d0\\n   init_module_from_file+0xd2/0x130\\n   __x64_sys_finit_module+0x306/0x440\\n   do_syscall_64+0x68/0x140\\n   entry_SYSCALL_64_after_hwframe+0x71/0x79\\n\\nThe root cause is that, in lookup_rec(), ftrace record of some address\\nis being searched in ftrace pages of some module, but those ftrace pages\\nat the same time is being freed in ftrace_release_mod() as the\\ncorresponding module is being deleted:\\n\\n           CPU1                       |      CPU2\\n  register_kprobes() {                | delete_module() {\\n    check_kprobe_address_safe() {     |\\n      arch_check_ftrace_location() {  |\\n        ftrace_location() {           |\\n          lookup_rec() // USE!        |   ftrace_release_mod() // Free!\\n\\nTo fix this issue:\\n  1. Hold rcu lock as accessing ftrace pages in ftrace_location_range();\\n  2. Use ftrace_location_range() instead of lookup_rec() in\\n     ftrace_location();\\n  3. Call synchronize_rcu() before freeing any ftrace pages both in\\n     ftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem().\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.286\", \"versionStartIncluding\": \"3.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.227\", \"versionStartIncluding\": \"3.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.162\", \"versionStartIncluding\": \"3.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.93\", \"versionStartIncluding\": \"3.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.33\", \"versionStartIncluding\": \"3.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.8.12\", \"versionStartIncluding\": \"3.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.3\", \"versionStartIncluding\": \"3.7\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"3.7\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:14:44.284Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-38588\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-11-03T20:38:10.030Z\", \"dateReserved\": \"2024-06-18T19:36:34.929Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-06-19T13:37:43.262Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

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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.