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CVE-2024-41000— block/ioctl: prefer different overflow check

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 block/ioctl 组件在处理溢出检查时存在问题。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.30% · P22

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 20

VendorProduct Version RangeStatus
Linux Linux 8f6dfa1f1efe6dcca2d43e575491d8fcbe922f62< 58706e482bf45c4db48b0c53aba2468c97adda24 affected
5010c27120962c85d2f421d2cf211791c9603503< 3220c90f4dbdc6d20d0608b164d964434a810d66 affected
ef31cc87794731ffcb578a195a2c47d744e25fb8< 61ec76ec930709b7bcd69029ef1fe90491f20cf9 affected
cb16cc1abda18a9514106d2ac8c8d7abc0be5ed8< fd841ee01fb4a79cb7f5cc424b5c96c3a73b2d1e affected
6f64f866aa1ae6975c95d805ed51d7e9433a0016< 54160fb1db2de367485f21e30196c42f7ee0be4e affected
6f64f866aa1ae6975c95d805ed51d7e9433a0016< ccb326b5f9e623eb7f130fbbf2505ec0e2dcaff9 affected
bcdc288e7bc008daf38ef0401b53e4a8bb61bbe5 affected
5.10.215< 5.10.221 affected
… +12 more rows
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I. Basic Information for CVE-2024-41000

Vulnerability Information
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Vulnerability Title
block/ioctl: prefer different overflow check
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: block/ioctl: prefer different overflow check Running syzkaller with the newly reintroduced signed integer overflow sanitizer shows this report: [ 62.982337] ------------[ cut here ]------------ [ 62.985692] cgroup: Invalid name [ 62.986211] UBSAN: signed-integer-overflow in ../block/ioctl.c:36:46 [ 62.989370] 9pnet_fd: p9_fd_create_tcp (7343): problem connecting socket to 127.0.0.1 [ 62.992992] 9223372036854775807 + 4095 cannot be represented in type 'long long' [ 62.997827] 9pnet_fd: p9_fd_create_tcp (7345): problem connecting socket to 127.0.0.1 [ 62.999369] random: crng reseeded on system resumption [ 63.000634] GUP no longer grows the stack in syz-executor.2 (7353): 20002000-20003000 (20001000) [ 63.000668] CPU: 0 PID: 7353 Comm: syz-executor.2 Not tainted 6.8.0-rc2-00035-gb3ef86b5a957 #1 [ 63.000677] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 63.000682] Call Trace: [ 63.000686] <TASK> [ 63.000731] dump_stack_lvl+0x93/0xd0 [ 63.000919] __get_user_pages+0x903/0xd30 [ 63.001030] __gup_longterm_locked+0x153e/0x1ba0 [ 63.001041] ? _raw_read_unlock_irqrestore+0x17/0x50 [ 63.001072] ? try_get_folio+0x29c/0x2d0 [ 63.001083] internal_get_user_pages_fast+0x1119/0x1530 [ 63.001109] iov_iter_extract_pages+0x23b/0x580 [ 63.001206] bio_iov_iter_get_pages+0x4de/0x1220 [ 63.001235] iomap_dio_bio_iter+0x9b6/0x1410 [ 63.001297] __iomap_dio_rw+0xab4/0x1810 [ 63.001316] iomap_dio_rw+0x45/0xa0 [ 63.001328] ext4_file_write_iter+0xdde/0x1390 [ 63.001372] vfs_write+0x599/0xbd0 [ 63.001394] ksys_write+0xc8/0x190 [ 63.001403] do_syscall_64+0xd4/0x1b0 [ 63.001421] ? arch_exit_to_user_mode_prepare+0x3a/0x60 [ 63.001479] entry_SYSCALL_64_after_hwframe+0x6f/0x77 [ 63.001535] RIP: 0033:0x7f7fd3ebf539 [ 63.001551] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 14 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 63.001562] RSP: 002b:00007f7fd32570c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 63.001584] RAX: ffffffffffffffda RBX: 00007f7fd3ff3f80 RCX: 00007f7fd3ebf539 [ 63.001590] RDX: 4db6d1e4f7e43360 RSI: 0000000020000000 RDI: 0000000000000004 [ 63.001595] RBP: 00007f7fd3f1e496 R08: 0000000000000000 R09: 0000000000000000 [ 63.001599] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 63.001604] R13: 0000000000000006 R14: 00007f7fd3ff3f80 R15: 00007ffd415ad2b8 ... [ 63.018142] ---[ end trace ]--- Historically, the signed integer overflow sanitizer did not work in the kernel due to its interaction with `-fwrapv` but this has since been changed [1] in the newest version of Clang; It was re-enabled in the kernel with Commit 557f8c582a9ba8ab ("ubsan: Reintroduce signed overflow sanitizer"). Let's rework this overflow checking logic to not actually perform an overflow during the check itself, thus avoiding the UBSAN splat. [1]: https://github.com/llvm/llvm-project/pull/82432
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 block/ioctl 组件在处理溢出检查时存在问题。
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 8f6dfa1f1efe6dcca2d43e575491d8fcbe922f62 ~ 58706e482bf45c4db48b0c53aba2468c97adda24 -
Linux Linux 6.8 -

II. Public POCs for CVE-2024-41000

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III. Intelligence Information for CVE-2024-41000

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Other References for CVE-2024-41000 (6)

Same Patch Batch · Linux · 2024-07-12 · 122 CVEs total

CVE-2024-40907 9.8 CRITICAL ionic: fix kernel panic in XDP_TX action
CVE-2024-40923 9.8 CRITICAL vmxnet3: disable rx data ring on dma allocation failure
CVE-2024-40983 9.8 CRITICAL tipc: force a dst refcount before doing decryption
CVE-2024-40999 9.8 CRITICAL net: ena: Add validation for completion descriptors consistency
CVE-2024-40937 9.8 CRITICAL gve: Clear napi->skb before dev_kfree_skb_any()
CVE-2024-40910 8.8 HIGH ax25: Fix refcount imbalance on inbound connections
CVE-2024-40911 8.8 HIGH wifi: cfg80211: Lock wiphy in cfg80211_get_station
CVE-2024-40941 8.1 HIGH wifi: iwlwifi: mvm: don't read past the mfuart notifcation
CVE-2024-40953 7.9 HIGH KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin()
CVE-2024-39495 7.8 HIGH greybus: Fix use-after-free bug in gb_interface_release due to race condition.
CVE-2024-40943 7.8 HIGH ocfs2: fix races between hole punching and AIO+DIO
CVE-2024-40958 7.8 HIGH netns: Make get_net_ns() handle zero refcount net
CVE-2024-40956 7.8 HIGH dmaengine: idxd: Fix possible Use-After-Free in irq_process_work_list
CVE-2024-40991 7.8 HIGH dmaengine: ti: k3-udma-glue: Fix of_k3_udma_glue_parse_chn_by_id()
CVE-2024-40990 7.8 HIGH RDMA/mlx5: Add check for srq max_sge attribute
CVE-2024-40989 7.8 HIGH KVM: arm64: Disassociate vcpus from redistributor region on teardown
CVE-2024-40986 7.8 HIGH dmaengine: xilinx: xdma: Fix data synchronisation in xdma_channel_isr()
CVE-2024-40918 7.8 HIGH parisc: Try to fix random segmentation faults in package builds
CVE-2024-40947 7.8 HIGH ima: Avoid blocking in RCU read-side critical section
CVE-2024-40979 7.8 HIGH wifi: ath12k: fix kernel crash during resume

Showing top 20 of 122 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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