CVE-2024-35832: bcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit
Telemetry drift only. No threshold crossed and no authority ruling changed.
CVE record, CISA KEV and EPSS as of 2026-10-18.
CVEs like this one computed, by meaning
What to do now held facts and links
- Upgrade to kernel 6.7.5 or later upper bounds of the CVE record's affected ranges
- Record your decision, dated and frozen with today's evidence: patch by a date · mitigated by a compensating control · deferred · accepted the risk · not affected
- Check your version against the ranges this record publishes.
What it is stated by the CNA
In the Linux kernel, the following vulnerability has been resolved: bcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exit bch_fs::snapshots is allocated by kvzalloc in __snapshot_t_mut. It should be freed by kvfree not kfree. Or umount will triger: [ 406.829178 ] BUG: unable to handle page fault for address: ffffe7b487148008 [ 406.830676 ] #PF: supervisor read access in kernel mode [ 406.831643 ] #PF: error_code(0x0000) - not-present page [ 406.832487 ] PGD 0 P4D 0 [ 406.832898 ] Oops: 0000 [#1] PREEMPT SMP PTI [ 406.833512 ] CPU: 2 PID: 1754 Comm: umount Kdump: loaded Tainted: G OE 6.7.0-rc7-custom+ #90 [ 406.834746 ] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014 [ 406.835796 ] RIP: 0010:kfree+0x62/0x140 [ 406.836197 ] Code: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48…
- weakness
- Not named by the CNA. NVD maps it to CWE-763.
- affected
- Linux
- published ranges
- linux kernel >= 6.7 < 6.7.5
- first unaffected version, by branch
- kernel 6.7.5
- fixed by package (from OSV advisories)
- Kernel (Linux): 6.7.5 CVE-2024-35832
- assigned by
- Linux
- published
- 2024-05-17
check us git.kernel.org git.kernel.org
Exploit code held, dated
- exploit code
- None held in the PoC-in-GitHub feed. A public repository changes this brief.
What moved held, dated
| date | EPSS | event |
|---|---|---|
| 18 May 2024 | 0.00043 | |
| 17 Mar 2025 | 0.00142 | scoring model v2025.03.14 |
| 29 Mar 2025 | 0.00618 | |
| 30 Mar 2025 | 0.00142 | |
| 15 Apr 2025 | 0.00103 | |
| 25 Jun 2025 | 0.00088 | |
| 26 Jun 2025 | 0.00087 | |
| 25 Sep 2025 | 0.00064 | |
| 18 Nov 2025 | 0.00065 | |
| 21 Nov 2025 | 0.00064 | |
| 15 Jun 2026 | 0.0018 | scoring model v2026.06.15 |
| 5 Sep 2026 | 0.00182 |
12 observations held. A step marked with a scoring model moved because the measurement was replaced, not because the vulnerability changed.
Outside the record researched, cited
This section reads the record's references and adds cited findings from outside it. It needs an account. Everything above is held facts and is complete without it.
What would change this brief held, dated
- CISA KEV
- Not listed in the catalogue we hold. A listing changes this brief.
- exploit probability
- 0.00 on 2026-09-05 (FIRST's EPSS, a probability and not evidence of exploitation). Next band line: 10% (0.10). Crossing a line changes this brief.
- fix
- Held: kernel 6.7.5. A newer fix from the CNA or OSV changes this brief.
How to check this
Every value above is held with two dates: when it was true upstream (as_of) and when we recorded it (tx_from). Re-derive the exploit probability as it stood on any date:
SELECT value, source, source_version, as_of, tx_from
FROM volatile_valid_as_of('CVE-2024-35832', '2026-11-02T23:59:59.999999Z', now());