CVE-2024-38588ftrace: Fix possible use-after-free issue in ftrace_location()
- 7.8HighCVSS base score
- 0.24%Exploitation in 30 daysEPSS · top 85% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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().
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CISA-ADPADP (enrichment) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.24% · top 85% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b – < eea46baf145150910ba134f75a67106ba2222c1b
- affected ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b – < 1880a324af1c95940a7c954b6b937e86844a33bd
- affected ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b – < 8ea8ef5e42173560ac510e92a1cc797ffeea8831
- affected ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b – < dbff5f0bfb2416b8b55c105ddbcd4f885e98fada
- affected ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b – < 7b4881da5b19f65709f5c18c1a4d8caa2e496461
- affected ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b – < 66df065b3106964e667b37bf8f7e55ec69d0c1f6
- affected ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b – < 31310e373f4c8c74e029d4326b283e757edabc0b
- affected ae6aa16fdc163afe6b04b6c073ad4ddd4663c03b – < e60b613df8b6253def41215402f72986fee3fc8d
- affected 3.7
- unaffected < 3.7
- unaffected 5.4.286 – ≤ 5.4.*
- unaffected 5.10.227 – ≤ 5.10.*
- unaffected 5.15.162 – ≤ 5.15.*
- unaffected 6.1.93 – ≤ 6.1.*
- unaffected 6.6.33 – ≤ 6.6.*
- unaffected 6.8.12 – ≤ 6.8.*
- unaffected 6.9.3 – ≤ 6.9.*
- unaffected 6.10 – ≤ *
References
References9
- https://git.kernel.org/stable/c/eea46baf145150910ba134f75a67106ba2222c1b (opens in a new tab)
- https://git.kernel.org/stable/c/1880a324af1c95940a7c954b6b937e86844a33bd (opens in a new tab)
- https://git.kernel.org/stable/c/8ea8ef5e42173560ac510e92a1cc797ffeea8831 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/dbff5f0bfb2416b8b55c105ddbcd4f885e98fada (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/7b4881da5b19f65709f5c18c1a4d8caa2e496461 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/66df065b3106964e667b37bf8f7e55ec69d0c1f6 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/31310e373f4c8c74e029d4326b283e757edabc0b (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/e60b613df8b6253def41215402f72986fee3fc8d (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-37451 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-38588)Record last updated .