CVE-2021-47088
published 2024-03-04CVE-2021-47088: In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamond_lock DAMON debugfs interface…
PriorityP429high7CVSS 3.1
AVLACHPRLUINSUCHIHAH
EPSS
0.21%
11.8th percentile
In the Linux kernel, the following vulnerability has been resolved:
mm/damon/dbgfs: protect targets destructions with kdamond_lock
DAMON debugfs interface iterates current monitoring targets in
'dbgfs_target_ids_read()' while holding the corresponding
'kdamond_lock'. However, it also destructs the monitoring targets in
'dbgfs_before_terminate()' without holding the lock. This can result in
a use_after_free bug. This commit avoids the race by protecting the
destruction with the corresponding 'kdamond_lock'.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.15.15-1 (bookworm) | linux 5.15.15-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 4bc05954d0076655cfaf6f0135585bdc20cd6b11 < 330c6117a82c16a9a365a51cec5c9ab30b13245c | 330c6117a82c16a9a365a51cec5c9ab30b13245c |
| linux | linux | >= 4bc05954d0076655cfaf6f0135585bdc20cd6b11 < 34796417964b8d0aef45a99cf6c2d20cebe33733 | 34796417964b8d0aef45a99cf6c2d20cebe33733 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 0 < 5.15.15-1 | 5.15.15-1 |
| linux | linux_kernel | >= 5.15 < 5.15.12 | 5.15.12 |
CVSS provenance
nvdv3.17.0HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.0HIGH
vendor_debian7.0HIGH
vendor_redhat7.0HIGH
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GHSA
GHSA-3f3q-cv7c-w6c7: In the Linux kernel, the following vulnerability has been resolved:
mm/damon/dbgfs: protect targets destructions with kdamond_lock
DAMON debugfs int
ghsa_unreviewed·2024-03-04
CVE-2021-47088 [HIGH] CWE-416 GHSA-3f3q-cv7c-w6c7: In the Linux kernel, the following vulnerability has been resolved:
mm/damon/dbgfs: protect targets destructions with kdamond_lock
DAMON debugfs int
In the Linux kernel, the following vulnerability has been resolved:
mm/damon/dbgfs: protect targets destructions with kdamond_lock
DAMON debugfs interface iterates current monitoring targets in
'dbgfs_target_ids_read()' while holding the corresponding
'kdamond_lock'. However, it also destructs the monitoring targets in
'dbgfs_before_terminate()' without holding the lock. This can result in
a use_after_free bug. This commit avoids the race by protecting the
destruction with the corresponding 'kdamond_lock'.
OSV
CVE-2021-47088: In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamond_lock DAMON debugfs inter
osv·2024-03-04·CVSS 7.0
CVE-2021-47088 [HIGH] CVE-2021-47088: In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamond_lock DAMON debugfs inter
In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamond_lock DAMON debugfs interface iterates current monitoring targets in 'dbgfs_target_ids_read()' while holding the corresponding 'kdamond_lock'. However, it also destructs the monitoring targets in 'dbgfs_before_terminate()' without holding the lock. This can result in a use_after_free bug. This commit avoids the race by protecting the destruction with the corresponding 'kdamond_lock'.
Red Hat
kernel: mm/damon/dbgfs: protect targets destructions with kdamond_lock
vendor_redhat·2024-03-04·CVSS 7.0
CVE-2021-47088 [HIGH] CWE-413 kernel: mm/damon/dbgfs: protect targets destructions with kdamond_lock
kernel: mm/damon/dbgfs: protect targets destructions with kdamond_lock
In the Linux kernel, the following vulnerability has been resolved:
mm/damon/dbgfs: protect targets destructions with kdamond_lock
DAMON debugfs interface iterates current monitoring targets in
'dbgfs_target_ids_read()' while holding the corresponding
'kdamond_lock'. However, it also destructs the monitoring targets in
'dbgfs_before_terminate()' without holding the lock. This can result in
a use_after_free bug. This commit avoids the race by protecting the
destruction with the corresponding 'kdamond_lock'.
Statement: No Red Hat Products are affected by this vulnerability.
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (Red Hat Enterprise Linux 7) - Not affected
Package: kernel-rt (Red H
Debian
CVE-2021-47088: linux - In the Linux kernel, the following vulnerability has been resolved: mm/damon/db...
vendor_debian·2021·CVSS 7.0
CVE-2021-47088 [HIGH] CVE-2021-47088: linux - In the Linux kernel, the following vulnerability has been resolved: mm/damon/db...
In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamond_lock DAMON debugfs interface iterates current monitoring targets in 'dbgfs_target_ids_read()' while holding the corresponding 'kdamond_lock'. However, it also destructs the monitoring targets in 'dbgfs_before_terminate()' without holding the lock. This can result in a use_after_free bug. This commit avoids the race by protecting the destruction with the corresponding 'kdamond_lock'.
Scope: local
bookworm: resolved (fixed in 5.15.15-1)
bullseye: resolved
forky: resolved (fixed in 5.15.15-1)
sid: resolved (fixed in 5.15.15-1)
trixie: resolved (fixed in 5.15.15-1)
No detection rules found.
No public exploits indexed.
2024-03-04
Published