CVE-2026-68165
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
mm/damon/core: validate ranges in damon_set_regions()
In the Linux kernel, the following vulnerability has been resolved: mm/damon/core: validate ranges in damon_set_regions() DAMON core logic assumes zero length regions don't exist. However, a few DAMON API callers including DAMON_SYSFS, DAMON_RECLAIM and DAMON_LRU_SORT allow users to set empty monitoring target regions. This could result in WARN_ONCE() on CONFIG_DAMON_DEBUG_SANITY enabled kernel, and divide-by-zero from damon_merge_two_regions(). For example, the WANR_ONCE() can be triggered like below. # grep DAMON_DEBUG_SANITY /boot/config-$(uname -r) # CONFIG_DAMON_DEBUG_SANITY=y # damo start # cd /sys/kernel/mm/damon/admin/kdamonds/0 # echo 0 > contexts/0/targets/0/regions/0/start # echo 0 > contexts/0/targets/0/regions/0/end # echo commit > state # dmesg [....] [ 73.705780] ------------[ cut here ]------------ [ 73.707552] start 0 >= end 0 [ 73.708452] WARNING: mm/damon/core.c:359 at damon_new_region+0x6e/0x80, CPU#1: kdamond.0/758 [...] All DAMON API callers eventually use damon_set_regions() to setup the regions. Add the validation logic in the function.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 43b0536cb4710e7bb591edfda7e68a1c327a3409 | affected | git | 71cf8a3ee1c18cfa8b88cc14bac9c2f43dd29f9b | Unavailable | None listed |
| 43b0536cb4710e7bb591edfda7e68a1c327a3409 | affected | git | b585facbafbb5cf117b37b1c75819ac046646c27 | Unavailable | None listed |
| 43b0536cb4710e7bb591edfda7e68a1c327a3409 | affected | git | c927b73a5694c735314ea10e7c81c07f9bd51ad7 | Unavailable | None listed |
| 43b0536cb4710e7bb591edfda7e68a1c327a3409 | affected | git | 4b6f1d6d5d07855bd1bb9e64922b049062138bfa | Unavailable | None listed |
| 43b0536cb4710e7bb591edfda7e68a1c327a3409 | affected | git | 43aaddd0fa92010a68adeda7744c7cf497a1c8e9 | Unavailable | None listed |
| 43b0536cb4710e7bb591edfda7e68a1c327a3409 | affected | git | 1292c0ecb1caefb8ca064a3639d5673991e8810c | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.16 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.16 | Unavailable | None listed |
| 6.1.183 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.148 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.101 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.42 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.6 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |