CVE-2022-50379
published 2025-09-18CVE-2022-50379: In the Linux kernel, the following vulnerability has been resolved: btrfs: fix race between quota enable and quota rescan ioctl When enabling quotas, at…
PriorityP416medium4.7CVSS 3.1
AVLACHPRLUINSUCNINAH
EPSS
0.10%
1.0th percentile
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix race between quota enable and quota rescan ioctl
When enabling quotas, at btrfs_quota_enable(), after committing the
transaction, we change fs_info->quota_root to point to the quota root we
created and set BTRFS_FS_QUOTA_ENABLED at fs_info->flags. Then we try
to start the qgroup rescan worker, first by initializing it with a call
to qgroup_rescan_init() - however if that fails we end up freeing the
quota root but we leave fs_info->quota_root still pointing to it, this
can later result in a use-after-free somewhere else.
We have previously set the flags BTRFS_FS_QUOTA_ENABLED and
BTRFS_QGROUP_STATUS_FLAG_ON, so we can only fail with -EINPROGRESS at
btrfs_quota_enable(), which is possible if someone already called the
quota rescan ioctl, and therefore started the rescan worker.
So fix this by ignoring an -EINPROGRESS and asserting we can't get any
other error.
Affected
19 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.0.3-1 (bookworm) | linux 6.0.3-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 5d23515be66904fa3b1b5d6bd72d2199cd2447ab < c97f6d528c3f1c83a6b792a8a7928c236c80b8fe | c97f6d528c3f1c83a6b792a8a7928c236c80b8fe |
| linux | linux | >= 5d23515be66904fa3b1b5d6bd72d2199cd2447ab < 26b7c0ac49a3eea15559c9d84863736a6d1164b4 | 26b7c0ac49a3eea15559c9d84863736a6d1164b4 |
| linux | linux | >= 5d23515be66904fa3b1b5d6bd72d2199cd2447ab < 47b5ffe86332af95f0f52be0a63d4da7c2b37b55 | 47b5ffe86332af95f0f52be0a63d4da7c2b37b55 |
| linux | linux | >= 5d23515be66904fa3b1b5d6bd72d2199cd2447ab < 4b996a3014ef014af8f97b60c35f5289210a4720 | 4b996a3014ef014af8f97b60c35f5289210a4720 |
| linux | linux | >= 5d23515be66904fa3b1b5d6bd72d2199cd2447ab < 0efd9dfc00d677a1d0929319a6103cb2dfc41c22 | 0efd9dfc00d677a1d0929319a6103cb2dfc41c22 |
| linux | linux | >= 5d23515be66904fa3b1b5d6bd72d2199cd2447ab < 6c22f86dd221eba0c7af645b1af73dcbc04ee27b | 6c22f86dd221eba0c7af645b1af73dcbc04ee27b |
| linux | linux | >= 5d23515be66904fa3b1b5d6bd72d2199cd2447ab < 331cd9461412e103d07595a10289de90004ac890 | 331cd9461412e103d07595a10289de90004ac890 |
| linux | linux_kernel | < 4.19.262 | 4.19.262 |
| linux | linux_kernel | >= 0 < 5.10.158-1 | 5.10.158-1 |
| linux | linux_kernel | >= 0 < 6.0.3-1 | 6.0.3-1 |
| linux | linux_kernel | >= 0 < 6.0.3-1 | 6.0.3-1 |
| linux | linux_kernel | >= 0 < 6.0.3-1 | 6.0.3-1 |
| linux | linux_kernel | >= 4.20 < 5.4.220 | 5.4.220 |
| linux | linux_kernel | >= 5.11 < 5.15.75 | 5.15.75 |
| linux | linux_kernel | >= 5.16 < 5.19.17 | 5.19.17 |
| linux | linux_kernel | >= 5.5 < 5.10.150 | 5.10.150 |
| linux | linux_kernel | >= 6.0 < 6.0.3 | 6.0.3 |
CVSS provenance
nvdv3.14.7MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
osv4.7MEDIUM
vendor_debian4.7MEDIUM
vendor_redhat4.7MEDIUM
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OSV
CVE-2022-50379: In the Linux kernel, the following vulnerability has been resolved: btrfs: fix race between quota enable and quota rescan ioctl When enabling quotas,
osv·2025-09-18·CVSS 4.7
CVE-2022-50379 [MEDIUM] CVE-2022-50379: In the Linux kernel, the following vulnerability has been resolved: btrfs: fix race between quota enable and quota rescan ioctl When enabling quotas,
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix race between quota enable and quota rescan ioctl When enabling quotas, at btrfs_quota_enable(), after committing the transaction, we change fs_info->quota_root to point to the quota root we created and set BTRFS_FS_QUOTA_ENABLED at fs_info->flags. Then we try to start the qgroup rescan worker, first by initializing it with a call to qgroup_rescan_init() - however if that fails we end up freeing the quota root but we leave fs_info->quota_root still pointing to it, this can later result in a use-after-free somewhere else. We have previously set the flags BTRFS_FS_QUOTA_ENABLED and BTRFS_QGROUP_STATUS_FLAG_ON, so we can only fail with -EINPROGRESS at btrfs_quota_enable(), which is possible if someone already called
GHSA
GHSA-ffg2-pg2r-fw6w: In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix race between quota enable and quota rescan ioctl
When enabling quotas
ghsa_unreviewed·2025-09-18
CVE-2022-50379 [MEDIUM] CWE-362 GHSA-ffg2-pg2r-fw6w: In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix race between quota enable and quota rescan ioctl
When enabling quotas
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix race between quota enable and quota rescan ioctl
When enabling quotas, at btrfs_quota_enable(), after committing the
transaction, we change fs_info->quota_root to point to the quota root we
created and set BTRFS_FS_QUOTA_ENABLED at fs_info->flags. Then we try
to start the qgroup rescan worker, first by initializing it with a call
to qgroup_rescan_init() - however if that fails we end up freeing the
quota root but we leave fs_info->quota_root still pointing to it, this
can later result in a use-after-free somewhere else.
We have previously set the flags BTRFS_FS_QUOTA_ENABLED and
BTRFS_QGROUP_STATUS_FLAG_ON, so we can only fail with -EINPROGRESS at
btrfs_quota_enable(), which is possible if someone already cal
Red Hat
kernel: Linux kernel (btrfs): Use-after-free vulnerability leads to Denial of Service
vendor_redhat·2025-09-18·CVSS 4.7
CVE-2022-50379 [MEDIUM] CWE-366 kernel: Linux kernel (btrfs): Use-after-free vulnerability leads to Denial of Service
kernel: Linux kernel (btrfs): Use-after-free vulnerability leads to Denial of Service
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix race between quota enable and quota rescan ioctl
When enabling quotas, at btrfs_quota_enable(), after committing the
transaction, we change fs_info->quota_root to point to the quota root we
created and set BTRFS_FS_QUOTA_ENABLED at fs_info->flags. Then we try
to start the qgroup rescan worker, first by initializing it with a call
to qgroup_rescan_init() - however if that fails we end up freeing the
quota root but we leave fs_info->quota_root still pointing to it, this
can later result in a use-after-free somewhere else.
We have previously set the flags BTRFS_FS_QUOTA_ENABLED and
BTRFS_QGROUP_STATUS_FLAG_ON, so we can only fail
Debian
CVE-2022-50379: linux - In the Linux kernel, the following vulnerability has been resolved: btrfs: fix ...
vendor_debian·2022·CVSS 4.7
CVE-2022-50379 [MEDIUM] CVE-2022-50379: linux - In the Linux kernel, the following vulnerability has been resolved: btrfs: fix ...
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix race between quota enable and quota rescan ioctl When enabling quotas, at btrfs_quota_enable(), after committing the transaction, we change fs_info->quota_root to point to the quota root we created and set BTRFS_FS_QUOTA_ENABLED at fs_info->flags. Then we try to start the qgroup rescan worker, first by initializing it with a call to qgroup_rescan_init() - however if that fails we end up freeing the quota root but we leave fs_info->quota_root still pointing to it, this can later result in a use-after-free somewhere else. We have previously set the flags BTRFS_FS_QUOTA_ENABLED and BTRFS_QGROUP_STATUS_FLAG_ON, so we can only fail with -EINPROGRESS at btrfs_quota_enable(), which is possible if someone already called
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/0efd9dfc00d677a1d0929319a6103cb2dfc41c22https://git.kernel.org/stable/c/26b7c0ac49a3eea15559c9d84863736a6d1164b4https://git.kernel.org/stable/c/331cd9461412e103d07595a10289de90004ac890https://git.kernel.org/stable/c/47b5ffe86332af95f0f52be0a63d4da7c2b37b55https://git.kernel.org/stable/c/4b996a3014ef014af8f97b60c35f5289210a4720https://git.kernel.org/stable/c/6c22f86dd221eba0c7af645b1af73dcbc04ee27bhttps://git.kernel.org/stable/c/c97f6d528c3f1c83a6b792a8a7928c236c80b8fe
2025-09-18
Published