CVE-2024-26987

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Source
https://nvd.nist.gov/vuln/detail/CVE-2024-26987
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-26987.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-26987
Related
Published
2024-05-01T06:15:16Z
Modified
2024-09-11T05:03:38.057409Z
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
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

mm/memory-failure: fix deadlock when hugetlboptimizevmemmap is enabled

When I did hard offline test with hugetlb pages, below deadlock occurs:

====================================================== WARNING: possible circular locking dependency detected

6.8.0-11409-gf6cef5f8c37f #1 Not tainted

bash/46904 is trying to acquire lock: ffffffffabe68910 (cpuhotpluglock){++++}-{0:0}, at: statickeyslow_dec+0x16/0x60

but task is already holding lock: ffffffffabf92ea8 (pcpbatchhighlock){+.+.}-{3:3}, at: zonepcp_disable+0x16/0x40

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #1 (pcpbatchhighlock){+.+.}-{3:3}: _mutexlock+0x6c/0x770 pagealloccpuonline+0x3c/0x70 cpuhpinvokecallback+0x397/0x5f0 _cpuhpinvokecallbackrange+0x71/0xe0 cpuup+0xeb/0x210 cpuup+0x91/0xe0 cpuhpbringupmask+0x49/0xb0 bringupnonbootcpus+0xb7/0xe0 smpinit+0x25/0xa0 kernelinitfreeable+0x15f/0x3e0 kernelinit+0x15/0x1b0 retfromfork+0x2f/0x50 retfromforkasm+0x1a/0x30

-> #0 (cpuhotpluglock){++++}-{0:0}: _lockacquire+0x1298/0x1cd0 lockacquire+0xc0/0x2b0 cpusreadlock+0x2a/0xc0 statickeyslowdec+0x16/0x60 _hugetlbvmemmaprestorefolio+0x1b9/0x200 dissolvefreehugepage+0x211/0x260 _pagehandlepoison+0x45/0xc0 memoryfailure+0x65e/0xc70 hardofflinepagestore+0x55/0xa0 kernfsfopwriteiter+0x12c/0x1d0 vfswrite+0x387/0x550 ksyswrite+0x64/0xe0 dosyscall64+0xca/0x1e0 entrySYSCALL64after_hwframe+0x6d/0x75

other info that might help us debug this:

Possible unsafe locking scenario:

   CPU0                    CPU1
   ----                    ----

lock(pcpbatchhighlock); lock(cpuhotpluglock); lock(pcpbatchhighlock); rlock(cpuhotpluglock);

* DEADLOCK *

5 locks held by bash/46904: #0: ffff98f6c3bb23f0 (sbwriters#5){.+.+}-{0:0}, at: ksyswrite+0x64/0xe0 #1: ffff98f6c328e488 (&of->mutex){+.+.}-{3:3}, at: kernfsfopwriteiter+0xf8/0x1d0 #2: ffff98ef83b31890 (kn->active#113){.+.+}-{0:0}, at: kernfsfopwriteiter+0x100/0x1d0 #3: ffffffffabf9db48 (mfmutex){+.+.}-{3:3}, at: memoryfailure+0x44/0xc70 #4: ffffffffabf92ea8 (pcpbatchhighlock){+.+.}-{3:3}, at: zonepcp_disable+0x16/0x40

stack backtrace: CPU: 10 PID: 46904 Comm: bash Kdump: loaded Not tainted 6.8.0-11409-gf6cef5f8c37f #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 Call Trace: <TASK> dumpstacklvl+0x68/0xa0 checknoncircular+0x129/0x140 _lockacquire+0x1298/0x1cd0 lockacquire+0xc0/0x2b0 cpusreadlock+0x2a/0xc0 statickeyslowdec+0x16/0x60 _hugetlbvmemmaprestorefolio+0x1b9/0x200 dissolvefreehugepage+0x211/0x260 _pagehandlepoison+0x45/0xc0 memoryfailure+0x65e/0xc70 hardofflinepagestore+0x55/0xa0 kernfsfopwriteiter+0x12c/0x1d0 vfswrite+0x387/0x550 ksyswrite+0x64/0xe0 dosyscall64+0xca/0x1e0 entrySYSCALL64afterhwframe+0x6d/0x75 RIP: 0033:0x7fc862314887 Code: 10 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24 RSP: 002b:00007fff19311268 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007fc862314887 RDX: 000000000000000c RSI: 000056405645fe10 RDI: 0000000000000001 RBP: 000056405645fe10 R08: 00007fc8623d1460 R09: 000000007fffffff R10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c R13: 00007fc86241b780 R14: 00007fc862417600 R15: 00007fc862416a00

In short, below scene breaks the ---truncated---

References

Affected packages

Debian:12 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.1.90-1

Affected versions

6.*

6.1.27-1
6.1.37-1
6.1.38-1
6.1.38-2~bpo11+1
6.1.38-2
6.1.38-3
6.1.38-4~bpo11+1
6.1.38-4
6.1.52-1
6.1.55-1~bpo11+1
6.1.55-1
6.1.64-1
6.1.66-1
6.1.67-1
6.1.69-1~bpo11+1
6.1.69-1
6.1.76-1~bpo11+1
6.1.76-1
6.1.82-1
6.1.85-1
6.1.90-1~bpo11+1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.8.9-1

Affected versions

6.*

6.1.27-1
6.1.37-1
6.1.38-1
6.1.38-2~bpo11+1
6.1.38-2
6.1.38-3
6.1.38-4~bpo11+1
6.1.38-4
6.1.52-1
6.1.55-1~bpo11+1
6.1.55-1
6.1.64-1
6.1.66-1
6.1.67-1
6.1.69-1~bpo11+1
6.1.69-1
6.1.76-1~bpo11+1
6.1.76-1
6.1.82-1
6.1.85-1
6.1.90-1~bpo11+1
6.1.90-1
6.1.94-1~bpo11+1
6.1.94-1
6.1.98-1
6.1.99-1
6.1.106-1
6.1.106-2
6.1.106-3
6.3.1-1~exp1
6.3.2-1~exp1
6.3.4-1~exp1
6.3.5-1~exp1
6.3.7-1~bpo12+1
6.3.7-1
6.3.11-1
6.4~rc6-1~exp1
6.4~rc7-1~exp1
6.4.1-1~exp1
6.4.4-1~bpo12+1
6.4.4-1
6.4.4-2
6.4.4-3~bpo12+1
6.4.4-3
6.4.11-1
6.4.13-1
6.5~rc4-1~exp1
6.5~rc6-1~exp1
6.5~rc7-1~exp1
6.5.1-1~exp1
6.5.3-1~bpo12+1
6.5.3-1
6.5.6-1
6.5.8-1
6.5.10-1~bpo12+1
6.5.10-1
6.5.13-1
6.6.3-1~exp1
6.6.4-1~exp1
6.6.7-1~exp1
6.6.8-1
6.6.9-1
6.6.11-1
6.6.13-1~bpo12+1
6.6.13-1
6.6.15-1
6.6.15-2
6.7-1~exp1
6.7.1-1~exp1
6.7.4-1~exp1
6.7.7-1
6.7.9-1
6.7.9-2
6.7.12-1~bpo12+1
6.7.12-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}