CVE-2024-35888
- Source
- https://cve.org/CVERecord?id=CVE-2024-35888
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-35888.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2024-35888
- Downstream
- Related
- Published
- 2024-05-19T08:34:44.428Z
- Modified
- 2026-05-18T05:57:14.070247591Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- erspan: make sure erspan_base_hdr is present in skb->head
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
erspan: make sure erspanbasehdr is present in skb->head
syzbot reported a problem in ip6erspan_rcv() [1]
Issue is that ip6erspanrcv() (and erspanrcv()) no longer make sure erspanbasehdr is present in skb linear part (skb->head) before getting @ver field from it.
Add the missing pskbmaypull() calls.
v2: Reload iph pointer in erspanrcv() after pskbmay_pull() because skb->head might have changed.
[1]
BUG: KMSAN: uninit-value in pskbmaypullreason include/linux/skbuff.h:2742 [inline] BUG: KMSAN: uninit-value in pskbmaypull include/linux/skbuff.h:2756 [inline] BUG: KMSAN: uninit-value in ip6erspanrcv net/ipv6/ip6gre.c:541 [inline] BUG: KMSAN: uninit-value in grercv+0x11f8/0x1930 net/ipv6/ip6gre.c:610 pskbmaypullreason include/linux/skbuff.h:2742 [inline] pskbmaypull include/linux/skbuff.h:2756 [inline] ip6erspanrcv net/ipv6/ip6gre.c:541 [inline] grercv+0x11f8/0x1930 net/ipv6/ip6gre.c:610 ip6protocoldeliverrcu+0x1d4c/0x2ca0 net/ipv6/ip6input.c:438 ip6inputfinish net/ipv6/ip6input.c:483 [inline] NFHOOK include/linux/netfilter.h:314 [inline] ip6input+0x15d/0x430 net/ipv6/ip6input.c:492 ip6mcinput+0xa7e/0xc80 net/ipv6/ip6input.c:586 dstinput include/net/dst.h:460 [inline] ip6rcvfinish+0x955/0x970 net/ipv6/ip6input.c:79 NFHOOK include/linux/netfilter.h:314 [inline] ipv6rcv+0xde/0x390 net/ipv6/ip6input.c:310 __netifreceiveskbonecore net/core/dev.c:5538 [inline] __netifreceiveskb+0x1da/0xa00 net/core/dev.c:5652 netifreceiveskbinternal net/core/dev.c:5738 [inline] netifreceiveskb+0x58/0x660 net/core/dev.c:5798 tunrxbatched+0x3ee/0x980 drivers/net/tun.c:1549 tungetuser+0x5566/0x69e0 drivers/net/tun.c:2002 tunchrwriteiter+0x3af/0x5d0 drivers/net/tun.c:2048 callwriteiter include/linux/fs.h:2108 [inline] newsyncwrite fs/readwrite.c:497 [inline] vfswrite+0xb63/0x1520 fs/readwrite.c:590 ksyswrite+0x20f/0x4c0 fs/read_write.c:643 __dosyswrite fs/read_write.c:655 [inline] __sesyswrite fs/read_write.c:652 [inline] _x64syswrite+0x93/0xe0 fs/readwrite.c:652 dosyscall64+0xd5/0x1f0 entrySYSCALL64afterhwframe+0x6d/0x75
Uninit was created at: slabpostallochook mm/slub.c:3804 [inline] slaballocnode mm/slub.c:3845 [inline] kmemcacheallocnode+0x613/0xc50 mm/slub.c:3888 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:577 __allocskb+0x35b/0x7a0 net/core/skbuff.c:668 allocskb include/linux/skbuff.h:1318 [inline] allocskbwithfrags+0xc8/0xbf0 net/core/skbuff.c:6504 sockallocsendpskb+0xa81/0xbf0 net/core/sock.c:2795 tunallocskb drivers/net/tun.c:1525 [inline] tungetuser+0x209a/0x69e0 drivers/net/tun.c:1846 tunchrwriteiter+0x3af/0x5d0 drivers/net/tun.c:2048 callwriteiter include/linux/fs.h:2108 [inline] newsyncwrite fs/readwrite.c:497 [inline] vfswrite+0xb63/0x1520 fs/readwrite.c:590 ksyswrite+0x20f/0x4c0 fs/readwrite.c:643 __dosyswrite fs/read_write.c:655 [inline] __sesyswrite fs/read_write.c:652 [inline] _x64syswrite+0x93/0xe0 fs/readwrite.c:652 dosyscall64+0xd5/0x1f0 entrySYSCALL64afterhwframe+0x6d/0x75
CPU: 1 PID: 5045 Comm: syz-executor114 Not tainted 6.9.0-rc1-syzkaller-00021-g962490525cff #0
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/35xxx/CVE-2024-35888.json", "cna_assigner": "Linux" }- References
-
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://git.kernel.org/stable/c/06a939f72a24a7d8251f84cf4c042df86c6666ac
- https://git.kernel.org/stable/c/0ac328a5a4138a6c03dfc3f46017bd5c19167446
- https://git.kernel.org/stable/c/17af420545a750f763025149fa7b833a4fc8b8f0
- https://git.kernel.org/stable/c/1db7fcb2b290c47c202b79528824f119fa28937d
- https://git.kernel.org/stable/c/4e3fdeecec5707678b0d1f18c259dadb97262e9d
- https://git.kernel.org/stable/c/b14b9f9503ec823ca75be766dcaeff4f0bfeca85
- https://git.kernel.org/stable/c/e54a0c79cdc2548729dd7e2e468b08c5af4d0df5
- https://git.kernel.org/stable/c/ee0088101beee10fa809716d6245d915b09c37c7
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/35xxx/CVE-2024-35888.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-35888
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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
-
Introduced0a198e0bb8bef51ced179702ad1af6f9e3715b64Fixed06a939f72a24a7d8251f84cf4c042df86c6666ac
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedcb73ee40b1b381eaf3749e6dbeed567bb38e5258Fixede54a0c79cdc2548729dd7e2e468b08c5af4d0df5Fixedb14b9f9503ec823ca75be766dcaeff4f0bfeca85Fixedee0088101beee10fa809716d6245d915b09c37c7Fixed1db7fcb2b290c47c202b79528824f119fa28937dFixed4e3fdeecec5707678b0d1f18c259dadb97262e9dFixed0ac328a5a4138a6c03dfc3f46017bd5c19167446Fixed17af420545a750f763025149fa7b833a4fc8b8f0
- 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 affected5195acd38ae48b7b5c186f522cd4351441297859
Affected versions
v2.*
v3.*
v4.*
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed4.19.312
- Type
- ECOSYSTEM
- Events
-
Introduced4.20.0Fixed5.4.274
- Type
- ECOSYSTEM
- Events
-
Introduced5.0.0Fixed5.10.215
- Type
- ECOSYSTEM
- Events
-
Introduced5.5.0Fixed5.15.154
- Type
- ECOSYSTEM
- Events
-
Introduced5.11.0Fixed6.1.85
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.6.26
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.8.5