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CVE-2024-44975— cgroup/cpuset: fix panic caused by partcmd_update

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于cgroup/cpuset组件存在由partcmd_update引起的内核崩溃漏洞。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1562.008

Affected Version Matrix 6

VendorProduct Version RangeStatus
Linux Linux 0c7f293efc87a06b51db9aa65256f8cb0a5a0a21< 73d6c6cf8ef6a3c532aa159f5114077746a372d6 affected
0c7f293efc87a06b51db9aa65256f8cb0a5a0a21< 959ab6350add903e352890af53e86663739fcb9a affected
6.7 affected
< 6.7 unaffected
6.10.7≤ 6.10.* unaffected
6.11≤ * unaffected
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I. Basic Information for CVE-2024-44975

Vulnerability Information
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Vulnerability Title
cgroup/cpuset: fix panic caused by partcmd_update
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: cgroup/cpuset: fix panic caused by partcmd_update We find a bug as below: BUG: unable to handle page fault for address: 00000003 PGD 0 P4D 0 Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 PID: 358 Comm: bash Tainted: G W I 6.6.0-10893-g60d6 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/4 RIP: 0010:partition_sched_domains_locked+0x483/0x600 Code: 01 48 85 d2 74 0d 48 83 05 29 3f f8 03 01 f3 48 0f bc c2 89 c0 48 9 RSP: 0018:ffffc90000fdbc58 EFLAGS: 00000202 RAX: 0000000100000003 RBX: ffff888100b3dfa0 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000002fe80 RBP: ffff888100b3dfb0 R08: 0000000000000001 R09: 0000000000000000 R10: ffffc90000fdbcb0 R11: 0000000000000004 R12: 0000000000000002 R13: ffff888100a92b48 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f44a5425740(0000) GS:ffff888237d80000(0000) knlGS:0000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000100030973 CR3: 000000010722c000 CR4: 00000000000006e0 Call Trace: <TASK> ? show_regs+0x8c/0xa0 ? __die_body+0x23/0xa0 ? __die+0x3a/0x50 ? page_fault_oops+0x1d2/0x5c0 ? partition_sched_domains_locked+0x483/0x600 ? search_module_extables+0x2a/0xb0 ? search_exception_tables+0x67/0x90 ? kernelmode_fixup_or_oops+0x144/0x1b0 ? __bad_area_nosemaphore+0x211/0x360 ? up_read+0x3b/0x50 ? bad_area_nosemaphore+0x1a/0x30 ? exc_page_fault+0x890/0xd90 ? __lock_acquire.constprop.0+0x24f/0x8d0 ? __lock_acquire.constprop.0+0x24f/0x8d0 ? asm_exc_page_fault+0x26/0x30 ? partition_sched_domains_locked+0x483/0x600 ? partition_sched_domains_locked+0xf0/0x600 rebuild_sched_domains_locked+0x806/0xdc0 update_partition_sd_lb+0x118/0x130 cpuset_write_resmask+0xffc/0x1420 cgroup_file_write+0xb2/0x290 kernfs_fop_write_iter+0x194/0x290 new_sync_write+0xeb/0x160 vfs_write+0x16f/0x1d0 ksys_write+0x81/0x180 __x64_sys_write+0x21/0x30 x64_sys_call+0x2f25/0x4630 do_syscall_64+0x44/0xb0 entry_SYSCALL_64_after_hwframe+0x78/0xe2 RIP: 0033:0x7f44a553c887 It can be reproduced with cammands: cd /sys/fs/cgroup/ mkdir test cd test/ echo +cpuset > ../cgroup.subtree_control echo root > cpuset.cpus.partition cat /sys/fs/cgroup/cpuset.cpus.effective 0-3 echo 0-3 > cpuset.cpus // taking away all cpus from root This issue is caused by the incorrect rebuilding of scheduling domains. In this scenario, test/cpuset.cpus.partition should be an invalid root and should not trigger the rebuilding of scheduling domains. When calling update_parent_effective_cpumask with partcmd_update, if newmask is not null, it should recheck newmask whether there are cpus is available for parect/cs that has tasks.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于cgroup/cpuset组件存在由partcmd_update引起的内核崩溃漏洞。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 0c7f293efc87a06b51db9aa65256f8cb0a5a0a21 ~ 73d6c6cf8ef6a3c532aa159f5114077746a372d6 -
Linux Linux 6.7 -

II. Public POCs for CVE-2024-44975

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III. Intelligence Information for CVE-2024-44975

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Patches & Fixes for CVE-2024-44975 (1)

Same Patch Batch · Linux · 2024-09-04 · 58 CVEs total

CVE-2024-44984 10.0 CRITICAL bnxt_en: Fix double DMA unmapping for XDP_REDIRECT
CVE-2024-44998 9.8 CRITICAL atm: idt77252: prevent use after free in dequeue_rx()
CVE-2024-44970 9.8 CRITICAL net/mlx5e: SHAMPO, Fix invalid WQ linked list unlink
CVE-2024-44985 9.8 CRITICAL ipv6: prevent possible UAF in ip6_xmit()
CVE-2024-44988 8.8 HIGH net: dsa: mv88e6xxx: Fix out-of-bound access
CVE-2024-44994 8.8 HIGH iommu: Restore lost return in iommu_report_device_fault()
CVE-2024-44973 8.1 HIGH mm, slub: do not call do_slab_free for kfence object
CVE-2024-44986 8.1 HIGH ipv6: fix possible UAF in ip6_finish_output2()
CVE-2024-44978 7.8 HIGH drm/xe: Free job before xe_exec_queue_put
CVE-2024-44995 7.8 HIGH net: hns3: fix a deadlock problem when config TC during resetting
CVE-2024-44974 7.8 HIGH mptcp: pm: avoid possible UaF when selecting endp
CVE-2024-44967 7.8 HIGH drm/mgag200: Bind I2C lifetime to DRM device
CVE-2024-44997 7.8 HIGH net: ethernet: mtk_wed: fix use-after-free panic in mtk_wed_setup_tc_block_cb()
CVE-2024-44987 7.8 HIGH ipv6: prevent UAF in ip6_send_skb()
CVE-2024-44966 7.8 HIGH binfmt_flat: Fix corruption when not offsetting data start
CVE-2024-44951 7.8 HIGH serial: sc16is7xx: fix TX fifo corruption
CVE-2024-44954 7.8 HIGH ALSA: line6: Fix racy access to midibuf
CVE-2024-44959 7.8 HIGH tracefs: Use generic inode RCU for synchronizing freeing
CVE-2024-45000 7.8 HIGH fs/netfs/fscache_cookie: add missing "n_accesses" check
CVE-2024-44949 7.8 HIGH parisc: fix a possible DMA corruption

Showing top 20 of 58 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-44975

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