ipv6: avoid possible NULL deref in rt6_uncached_list_flush_dev()
In the Linux kernel, the following vulnerability has been resolved: ipv6: avoid possible NULL deref in rt6_uncached_list_flush_dev() Blamed commit accidentally removed a check for rt->rt6i_idev being NULL, as spotted by syzbot: Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 1 UID: 0 PID: 10998 Comm: syz-executor Not tainted 6.11.0-rc6-syzkaller-00208-g625403177711 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:rt6_uncached_list_flush_dev net/ipv6/route.c:177 [inline] RIP: 0010:rt6_disable_ip+0x33e/0x7e0 net/ipv6/route.c:4914 Code: 41 80 3c 04 00 74 0a e8 90 d0 9b f7 48 8b 7c 24 08 48 8b 07 48 89 44 24 10 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 f7 e8 64 d0 9b f7 48 8b 44 24 18 49 39 06 RSP: 0018:ffffc900047374e0 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 1ffff1100fdf8f33 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88807efc78c0 RBP: ffffc900047375d0 R08: 0000000000000003 R09: fffff520008e6e8c R10: dffffc0000000000 R11: fffff520008e6e8c R12: 1ffff1100fdf8f18 R13: ffff88807efc7998 R14: 0000000000000000 R15: ffff88807efc7930 FS: 0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020002a80 CR3: 0000000022f62000 CR4: 00000000003506f0
CVE-2024-47707
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2024-47707
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "e332bc67cf5e5e5b71a1aec9750d0791aac65183",
"lessThan": "a61a174280dad99f25a7dee920310885daf2552b",
"versionType": "git"
},
{
"status": "affected",
"version": "e332bc67cf5e5e5b71a1aec9750d0791aac65183",
"lessThan": "8a8b83016f06805775db099c8377024b6fa5b975",
"versionType": "git"
},
{
"status": "affected",
"version": "e332bc67cf5e5e5b71a1aec9750d0791aac65183",
"lessThan": "e43dd28405e6b9935279996725ee11e6306547a5",
"versionType": "git"
},
{
"status": "affected",
"version": "e332bc67cf5e5e5b71a1aec9750d0791aac65183",
"lessThan": "f2bd9635543ca41533b870f420872819f8331823",
"versionType": "git"
},
{
"status": "affected",
"version": "e332bc67cf5e5e5b71a1aec9750d0791aac65183",
"lessThan": "0ceb2f2b5c813f932d6e60d3feec5e7e713da783",
"versionType": "git"
},
{
"status": "affected",
"version": "e332bc67cf5e5e5b71a1aec9750d0791aac65183",
"lessThan": "9a0ddc73be37d19dff1ba08290af34e707d18e50",
"versionType": "git"
},
{
"status": "affected",
"version": "e332bc67cf5e5e5b71a1aec9750d0791aac65183",
"lessThan": "08409e401622e2896b4313be9f781bde8a2a6a53",
"versionType": "git"
},
{
"status": "affected",
"version": "e332bc67cf5e5e5b71a1aec9750d0791aac65183",
"lessThan": "04ccecfa959d3b9ae7348780d8e379c6486176ac",
"versionType": "git"
},
{
"status": "affected",
"version": "58d772c203ee57c45620730198bc2d9ded7a1464",
"versionType": "git"
},
{
"status": "affected",
"version": "4.2.5",
"lessThan": "4.3",
"versionType": "semver"
}
],
"programFiles": [
"net/ipv6/route.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.3"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.3",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.4.290",
"versionType": "semver",
"lessThanOrEqual": "5.4.*"
},
{
"status": "unaffected",
"version": "5.10.234",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.177",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.113",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.54",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.10.13",
"versionType": "semver",
"lessThanOrEqual": "6.10.*"
},
{
"status": "unaffected",
"version": "6.11.2",
"versionType": "semver",
"lessThanOrEqual": "6.11.*"
},
{
"status": "unaffected",
"version": "6.12",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/ipv6/route.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2024-47707
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #26732 · Revision 1
- Added to Heist Feed
- Publisher date