CVE-2024-57982
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-57982
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-57982.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-57982
- Downstream
- Related
- Published
- 2025-02-27T02:07:08Z
- Modified
- 2025-10-22T07:50:01.965919Z
- Severity
-
- 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
- Summary
- xfrm: state: fix out-of-bounds read during lookup
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
xfrm: state: fix out-of-bounds read during lookup
lookup and resize can run in parallel.
The xfrmstatehash_generation seqlock ensures a retry, but the hash functions can observe a hmask value that is too large for the new hlist array.
rehash does: rcuassignpointer(net->xfrm.statebydst, ndst) [..] net->xfrm.statehmask = nhashmask;
While state lookup does: h = xfrmdsthash(net, daddr, saddr, tmpl->reqid, encapfamily); hlistforeachentryrcu(x, net->xfrm.statebydst + h, bydst) {
This is only safe in case the update to statebydst is larger than net->xfrm.xfrmstate_hmask (or if the lookup function gets serialized via state spinlock again).
Fix this by prefetching statehmask and the associated pointers. The xfrmstatehashgeneration seqlock retry will ensure that the pointer and the hmask will be consistent.
The existing helpers, like xfrmdsthash(), are now unsafe for RCU side, add lockdep assertions to document that they are only safe for insert side.
xfrmstatelookup_byaddr() uses the spinlock rather than RCU. AFAICS this is an oversight from back when state lookup was converted to RCU, this lock should be replaced with RCU in a future patch.
- References
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
-
Introducedc2f672fc94642bae96821a393f342edcfa9794a6Fixeda16871c7832ea6435abb6e0b58289ae7dcb7e4fc
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedc2f672fc94642bae96821a393f342edcfa9794a6Fixeddd4c2a174994238d55ab54da2545543d36f4e0d0
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedc2f672fc94642bae96821a393f342edcfa9794a6Fixede952837f3ddb0ff726d5b582aa1aad9aa38d024d
Affected versions
v4.*
v4.10
v4.10-rc1
v4.10-rc2
v4.10-rc3
v4.10-rc4
v4.10-rc5
v4.10-rc6
v4.10-rc7
v4.10-rc8
v4.11
v4.11-rc1
v4.11-rc2
v4.11-rc3
v4.11-rc4
v4.11-rc5
v4.11-rc6
v4.11-rc7
v4.11-rc8
v4.12
v4.12-rc1
v4.12-rc2
v4.12-rc3
v4.12-rc4
v4.12-rc5
v4.12-rc6
v4.12-rc7
v4.13
v4.13-rc1
v4.13-rc2
v4.13-rc3
v4.13-rc4
v4.13-rc5
v4.13-rc6
v4.13-rc7
v4.14
v4.14-rc1
v4.14-rc2
v4.14-rc3
v4.14-rc4
v4.14-rc5
v4.14-rc6
v4.14-rc7
v4.14-rc8
v4.15
v4.15-rc1
v4.15-rc2
v4.15-rc3
v4.15-rc4
v4.15-rc5
v4.15-rc6
v4.15-rc7
v4.15-rc8
v4.15-rc9
v4.16
v4.16-rc1
v4.16-rc2
v4.16-rc3
v4.16-rc4
v4.16-rc5
v4.16-rc6
v4.16-rc7
v4.17
v4.17-rc1
v4.17-rc2
v4.17-rc3
v4.17-rc4
v4.17-rc5
v4.17-rc6
v4.17-rc7
v4.18
v4.18-rc1
v4.18-rc2
v4.18-rc3
v4.18-rc4
v4.18-rc5
v4.18-rc6
v4.18-rc7
v4.18-rc8
v4.19
v4.19-rc1
v4.19-rc2
v4.19-rc3
v4.19-rc4
v4.19-rc5
v4.19-rc6
v4.19-rc7
v4.19-rc8
v4.20
v4.20-rc1
v4.20-rc2
v4.20-rc3
v4.20-rc4
v4.20-rc5
v4.20-rc6
v4.20-rc7
v4.8
v4.8-rc5
v4.8-rc6
v4.8-rc7
v4.8-rc8
v4.9
v4.9-rc1
v4.9-rc2
v4.9-rc3
v4.9-rc4
v4.9-rc5
v4.9-rc6
v4.9-rc7
v4.9-rc8
v5.*
v5.0
v5.0-rc1
v5.0-rc2
v5.0-rc3
v5.0-rc4
v5.0-rc5
v5.0-rc6
v5.0-rc7
v5.0-rc8
v5.1
v5.1-rc1
v5.1-rc2
v5.1-rc3
v5.1-rc4
v5.1-rc5
v5.1-rc6
v5.1-rc7
v5.10
v5.10-rc1
v5.10-rc2
v5.10-rc3
v5.10-rc4
v5.10-rc5
v5.10-rc6
v5.10-rc7
v5.11
v5.11-rc1
v5.11-rc2
v5.11-rc3
v5.11-rc4
v5.11-rc5
v5.11-rc6
v5.11-rc7
v5.12
v5.12-rc1
v5.12-rc1-dontuse
v5.12-rc2
v5.12-rc3
v5.12-rc4
v5.12-rc5
v5.12-rc6
v5.12-rc7
v5.12-rc8
v5.13
v5.13-rc1
v5.13-rc2
v5.13-rc3
v5.13-rc4
v5.13-rc5
v5.13-rc6
v5.13-rc7
v5.14
v5.14-rc1
v5.14-rc2
v5.14-rc3
v5.14-rc4
v5.14-rc5
v5.14-rc6
v5.14-rc7
v5.15
v5.15-rc1
v5.15-rc2
v5.15-rc3
v5.15-rc4
v5.15-rc5
v5.15-rc6
v5.15-rc7
v5.16
v5.16-rc1
v5.16-rc2
v5.16-rc3
v5.16-rc4
v5.16-rc5
v5.16-rc6
v5.16-rc7
v5.16-rc8
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v5.2
v5.2-rc1
v5.2-rc2
v5.2-rc3
v5.2-rc4
v5.2-rc5
v5.2-rc6
v5.2-rc7
v5.3
v5.3-rc1
v5.3-rc2
v5.3-rc3
v5.3-rc4
v5.3-rc5
v5.3-rc6
v5.3-rc7
v5.3-rc8
v5.4
v5.4-rc1
v5.4-rc2
v5.4-rc3
v5.4-rc4
v5.4-rc5
v5.4-rc6
v5.4-rc7
v5.4-rc8
v5.5
v5.5-rc1
v5.5-rc2
v5.5-rc3
v5.5-rc4
v5.5-rc5
v5.5-rc6
v5.5-rc7
v5.6
v5.6-rc1
v5.6-rc2
v5.6-rc3
v5.6-rc4
v5.6-rc5
v5.6-rc6
v5.6-rc7
v5.7
v5.7-rc1
v5.7-rc2
v5.7-rc3
v5.7-rc4
v5.7-rc5
v5.7-rc6
v5.7-rc7
v5.8
v5.8-rc1
v5.8-rc2
v5.8-rc3
v5.8-rc4
v5.8-rc5
v5.8-rc6
v5.8-rc7
v5.9
v5.9-rc1
v5.9-rc2
v5.9-rc3
v5.9-rc4
v5.9-rc5
v5.9-rc6
v5.9-rc7
v5.9-rc8
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.1
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
v6.1-rc6
v6.1-rc7
v6.1-rc8
v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.11
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.11-rc4
v6.11-rc5
v6.11-rc6
v6.11-rc7
v6.12
v6.12-rc1
v6.12-rc2
v6.12-rc3
v6.12-rc4
v6.12-rc5
v6.12-rc6
v6.12-rc7
v6.12.1
v6.12.10
v6.12.11
v6.12.12
v6.12.2
v6.12.3
v6.12.4
v6.12.5
v6.12.6
v6.12.7
v6.12.8
v6.12.9
v6.13
v6.13-rc1
v6.13-rc2
v6.13-rc3
v6.13-rc4
v6.13-rc5
v6.13-rc6
v6.13-rc7
v6.13.1
v6.2
v6.2-rc1
v6.2-rc2
v6.2-rc3
v6.2-rc4
v6.2-rc5
v6.2-rc6
v6.2-rc7
v6.2-rc8
v6.3
v6.3-rc1
v6.3-rc2
v6.3-rc3
v6.3-rc4
v6.3-rc5
v6.3-rc6
v6.3-rc7
v6.4
v6.4-rc1
v6.4-rc2
v6.4-rc3
v6.4-rc4
v6.4-rc5
v6.4-rc6
v6.4-rc7
v6.5
v6.5-rc1
v6.5-rc2
v6.5-rc3
v6.5-rc4
v6.5-rc5
v6.5-rc6
v6.5-rc7
v6.6
v6.6-rc1
v6.6-rc2
v6.6-rc3
v6.6-rc4
v6.6-rc5
v6.6-rc6
v6.6-rc7
v6.7
v6.7-rc1
v6.7-rc2
v6.7-rc3
v6.7-rc4
v6.7-rc5
v6.7-rc6
v6.7-rc7
v6.7-rc8
v6.8
v6.8-rc1
v6.8-rc2
v6.8-rc3
v6.8-rc4
v6.8-rc5
v6.8-rc6
v6.8-rc7
v6.9
v6.9-rc1
v6.9-rc2
v6.9-rc3
v6.9-rc4
v6.9-rc5
v6.9-rc6
v6.9-rc7
Database specific
vanir_signatures
[
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"target": {
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"file": "net/xfrm/xfrm_state.c"
},
"id": "CVE-2024-57982-01b05d42"
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"target": {
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},
"id": "CVE-2024-57982-074680cc"
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"target": {
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"file": "net/xfrm/xfrm_state.c"
},
"id": "CVE-2024-57982-0d3586f8"
},
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"target": {
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"target": {
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},
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"target": {
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"target": {
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"target": {
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},
"id": "CVE-2024-57982-4fdceec8"
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"target": {
"function": "__xfrm_state_lookup_all",
"file": "net/xfrm/xfrm_state.c"
},
"id": "CVE-2024-57982-a8a4e196"
},
{
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"target": {
"function": "xfrm_state_lookup",
"file": "net/xfrm/xfrm_state.c"
},
"id": "CVE-2024-57982-afa832fa"
},
{
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"target": {
"function": "xfrm_state_lookup_byaddr",
"file": "net/xfrm/xfrm_state.c"
},
"id": "CVE-2024-57982-b3f767fd"
},
{
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"target": {
"function": "xfrm_dst_hash",
"file": "net/xfrm/xfrm_state.c"
},
"id": "CVE-2024-57982-b5956681"
},
{
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"target": {
"function": "xfrm_seq_hash",
"file": "net/xfrm/xfrm_state.c"
},
"id": "CVE-2024-57982-b8c40393"
},
{
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"target": {
"function": "xfrm_input_state_lookup",
"file": "net/xfrm/xfrm_state.c"
},
"id": "CVE-2024-57982-c03ccd3a"
},
{
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"target": {
"function": "xfrm_src_hash",
"file": "net/xfrm/xfrm_state.c"
},
"id": "CVE-2024-57982-c7e32f2e"
},
{
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"target": {
"function": "xfrm_dst_hash",
"file": "net/xfrm/xfrm_state.c"
},
"id": "CVE-2024-57982-d75ac9e4"
},
{
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"target": {
"function": "xfrm_state_lookup",
"file": "net/xfrm/xfrm_state.c"
},
"id": "CVE-2024-57982-d9ee1c39"
},
{
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"target": {
"function": "xfrm_state_find",
"file": "net/xfrm/xfrm_state.c"
},
"id": "CVE-2024-57982-e6398e29"
},
{
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"digest": {
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"target": {
"function": "xfrm_spi_hash",
"file": "net/xfrm/xfrm_state.c"
},
"id": "CVE-2024-57982-f477754e"
},
{
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"digest": {
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"target": {
"function": "xfrm_src_hash",
"file": "net/xfrm/xfrm_state.c"
},
"id": "CVE-2024-57982-f75583f1"
}
]