CVE-2023-54148
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-54148
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54148.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-54148
- Downstream
- Published
- 2025-12-24T13:07:00.260Z
- Modified
- 2025-12-25T00:08:02.995273Z
- Summary
- net/mlx5e: Move representor neigh cleanup to profile cleanup_tx
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Move representor neigh cleanup to profile cleanup_tx
For IP tunnel encapsulation in ECMP (Equal-Cost Multipath) mode, as the flow is duplicated to the peer eswitch, the related neighbour information on the peer uplink representor is created as well.
In the cited commit, eswitch devcom unpair is moved to uplink unload API, specifically the profile->cleanuptx. If there is a encap rule offloaded in ECMP mode, when one eswitch does unpair (because of unloading the driver, for instance), and the peer rule from the peer eswitch is going to be deleted, the use-after-free error is triggered while accessing neigh info, as it is already cleaned up in uplink's profile->disable, which is before its profile->cleanuptx.
To fix this issue, move the neigh cleanup to profile's cleanuptx callback, and after mlx5ecleanupuplinkreptx is called. The neigh init is moved to inittx for symmeter.
[ 2453.376299] BUG: KASAN: slab-use-after-free in mlx5erepneighentryrelease+0x109/0x3a0 [mlx5_core] [ 2453.379125] Read of size 4 at addr ffff888127af9008 by task modprobe/2496
[ 2453.381542] CPU: 7 PID: 2496 Comm: modprobe Tainted: G B 6.4.0-rc7+ #15 [ 2453.383386] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 [ 2453.384335] Call Trace: [ 2453.384625] <TASK> [ 2453.384891] dumpstacklvl+0x33/0x50 [ 2453.385285] printreport+0xc2/0x610 [ 2453.385667] ? _virtaddrvalid+0xb1/0x130 [ 2453.386091] ? mlx5erepneighentryrelease+0x109/0x3a0 [mlx5core] [ 2453.386757] kasanreport+0xae/0xe0 [ 2453.387123] ? mlx5erepneighentryrelease+0x109/0x3a0 [mlx5core] [ 2453.387798] mlx5erepneighentryrelease+0x109/0x3a0 [mlx5core] [ 2453.388465] mlx5erepencapentrydetach+0xa6/0xe0 [mlx5core] [ 2453.389111] mlx5eencapdealloc+0xa7/0x100 [mlx5core] [ 2453.389706] mlx5etctunencapdestsunset+0x61/0xb0 [mlx5core] [ 2453.390361] mlx5freeflowattractions+0x11e/0x340 [mlx5core] [ 2453.391015] ? completeall+0x43/0xd0 [ 2453.391398] ? freeflowpostacts+0x38/0x120 [mlx5core] [ 2453.392004] mlx5etcdelfdbflow+0x4ae/0x690 [mlx5core] [ 2453.392618] mlx5etcdelfdbpeersflow+0x308/0x370 [mlx5core] [ 2453.393276] mlx5etccleanfdbpeerflows+0xf5/0x140 [mlx5core] [ 2453.393925] mlx5eswoffloadsunpair+0x86/0x540 [mlx5core] [ 2453.394546] ? mlx5eswoffloadssetnspeer.isra.0+0x180/0x180 [mlx5core] [ 2453.395268] ? downwrite+0xaa/0x100 [ 2453.395652] mlx5eswoffloadsdevcomevent+0x203/0x530 [mlx5core] [ 2453.396317] mlx5devcomsendevent+0xbb/0x190 [mlx5core] [ 2453.396917] mlx5eswoffloadsdevcomcleanup+0xb0/0xd0 [mlx5core] [ 2453.397582] mlx5etceswcleanup+0x42/0x120 [mlx5core] [ 2453.398182] mlx5ereptccleanup+0x15/0x30 [mlx5core] [ 2453.398768] mlx5ecleanupreptx+0x6c/0x80 [mlx5core] [ 2453.399367] mlx5edetachnetdev+0xee/0x120 [mlx5core] [ 2453.399957] mlx5enetdevchangeprofile+0x84/0x170 [mlx5core] [ 2453.400598] mlx5evportrepunload+0xe0/0xf0 [mlx5core] [ 2453.403781] mlx5eswitchunregistervportreps+0x15e/0x190 [mlx5core] [ 2453.404479] ? mlx5eswitchregistervportreps+0x200/0x200 [mlx5core] [ 2453.405170] ? upwrite+0x39/0x60 [ 2453.405529] ? kernfsremovebynamens+0xb7/0xe0 [ 2453.405985] auxiliarybusremove+0x2e/0x40 [ 2453.406405] devicereleasedriverinternal+0x243/0x2d0 [ 2453.406900] ? kobjectput+0x42/0x2d0 [ 2453.407284] busremovedevice+0x128/0x1d0 [ 2453.407687] devicedel+0x240/0x550 [ 2453.408053] ? waitingforsuppliershow+0xe0/0xe0 [ 2453.408511] ? kobjectput+0xfa/0x2d0 [ 2453.408889] ? _kmemcachefree+0x14d/0x280 [ 2453.409310] mlx5rescandriverslocked.part.0+0xcd/0x2b0 [mlx5core] [ 2453.409973] mlx5unregisterdevice+0x40/0x50 [mlx5core] [ 2453.410561] mlx5uninitone+0x3d/0x110 [mlx5core] [ 2453.411111] removeone+0x89/0x130 [mlx5core] [ 24 ---truncated---
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54148.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/36697c592cd0809e626df01b3644c23ac522a4d0
- https://git.kernel.org/stable/c/d03b6e6f31820b84f7449cca022047f36c42bc3f
- https://git.kernel.org/stable/c/d628ba98eb1637acce44001e04c718d8dbb1f7ce
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54148.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-54148
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedb17294e7aa8c39dbb9c3e28e2d1983c88b94b387Fixedd628ba98eb1637acce44001e04c718d8dbb1f7ce
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced2be5bd42a5bba1a05daedc86cf0e248210009669Fixed36697c592cd0809e626df01b3644c23ac522a4d0Fixedd03b6e6f31820b84f7449cca022047f36c42bc3f
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedLast affected10cbfecc0f99f579fb170feee866c9efaab7ee47