CVE-2023-53307
In the Linux kernel, the following vulnerability has been resolved: rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails If getting an ID or setting up a work queue in rbd_dev_create() fails, use-after-free on rbd_dev->rbd_client,…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.16%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails If getting an ID or setting up a work queue in rbd_dev_create() fails, use-after-free on rbd_dev->rbd_client, rbd_dev->spec and rbd_dev->opts is triggered in do_rbd_add(). The root cause is that the ownership of these structures is transfered to rbd_dev prematurely and they all end up getting freed when rbd_dev_create() calls rbd_dev_free() prior to returning to do_rbd_add(). Found by Linux Verification Center (linuxtesting.org) with SVACE, an incomplete patch submitted by Natalia Petrova <n.petrova@fintech.ru>.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.16% probability · 5th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/71da2a151ed1adb0aea4252b16d81b53012e7afdPatch
- https://git.kernel.org/stable/c/9787b328c42c13c4f31e7d5042c4e877e9344068Patch
- https://git.kernel.org/stable/c/a73783e4e0c4d1507794da211eeca75498544dffPatch
- https://git.kernel.org/stable/c/ae16346078b1189aee934afd872d9f3d0a682c33Patch
- https://git.kernel.org/stable/c/cc8c0dd2984503ed09efa37bcafcef3d3da104e8Patch
- https://git.kernel.org/stable/c/e3cbb4d60764295992c95344f2d779439e8b34cePatch
- https://git.kernel.org/stable/c/f7c4d9b133c7a04ca619355574e96b6abf209fbaPatch
- https://git.kernel.org/stable/c/faa7b683e436664fff5648426950718277831348Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.