unreferenced object 0xffff9b674176e3c0 (size 192): comm “cachefilesd2”, pid
680, jiffies 4294881224 hex dump (first 32 bytes): 01 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 … 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 … backtrace (crc ea38a44b):
[<ffffffff8eb8a1a5>] kmem_cache_alloc+0x2d5/0x370 [<ffffffff8e917f86>]
prepare_creds+0x26/0x2e0 [<ffffffffc002eeef>]
cachefiles_determine_cache_security+0x1f/0x120 [<ffffffffc00243ec>]
cachefiles_add_cache+0x13c/0x3a0 [<ffffffffc0025216>]
cachefiles_daemon_write+0x146/0x1c0 [<ffffffff8ebc4a3b>]
vfs_write+0xcb/0x520 [<ffffffff8ebc5069>] ksys_write+0x69/0xf0
[<ffffffff8f6d4662>] do_syscall_64+0x72/0x140 [<ffffffff8f8000aa>]
entry_SYSCALL_64_after_hwframe+0x6e/0x76
================================================================== Put the
reference count of cache_cred in cachefiles_daemon_unbind() to fix the
problem. And also put cache_cred in cachefiles_add_cache() error branch to
avoid memory leaks.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-227.239 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < 5.4.0-186.206 | UNKNOWN |
ubuntu | 22.04 | noarch | linux | < 5.15.0-112.122 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < any | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1170.183 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1126.136 | UNKNOWN |
ubuntu | 22.04 | noarch | linux-aws | < 5.15.0-1063.69 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | < any | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws-5.15 | < 5.15.0-1063.69~20.04.1 | UNKNOWN |
git.kernel.org/linus/e21a2f17566cbd64926fb8f16323972f7a064444 (6.8-rc6)
git.kernel.org/stable/c/037d5a949b0455540ef9aab34c10ddf54b65d285
git.kernel.org/stable/c/38e921616320d159336b0ffadb09e9fb4945c7c3
git.kernel.org/stable/c/43eccc5823732ba6daab2511ed32dfc545a666d8
git.kernel.org/stable/c/8b218e2f0a27a9f09428b1847b4580640b9d1e58
git.kernel.org/stable/c/94965be37add0983672e48ecb33cdbda92b62579
git.kernel.org/stable/c/9cac69912052a4def571fedf1cb9bb4ec590e25a
git.kernel.org/stable/c/cb5466783793e66272624cf71925ae1d1ba32083
git.kernel.org/stable/c/e21a2f17566cbd64926fb8f16323972f7a064444
launchpad.net/bugs/cve/CVE-2024-26840
nvd.nist.gov/vuln/detail/CVE-2024-26840
security-tracker.debian.org/tracker/CVE-2024-26840
ubuntu.com/security/notices/USN-6820-1
ubuntu.com/security/notices/USN-6820-2
ubuntu.com/security/notices/USN-6821-1
ubuntu.com/security/notices/USN-6821-2
ubuntu.com/security/notices/USN-6821-3
ubuntu.com/security/notices/USN-6821-4
ubuntu.com/security/notices/USN-6828-1
ubuntu.com/security/notices/USN-6831-1
ubuntu.com/security/notices/USN-6867-1
ubuntu.com/security/notices/USN-6871-1
ubuntu.com/security/notices/USN-6892-1
ubuntu.com/security/notices/USN-6919-1
ubuntu.com/security/notices/USN-6926-1
www.cve.org/CVERecord?id=CVE-2024-26840