Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2023-52610— net/sched: act_ct: fix skb leak and crash on ooo frags

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，该漏洞源于存在skb泄漏问题。

CVSS 7.5 · High EPSS 0.64% · P49

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux b57dc7c13ea90e09ae15f821d2583fa0231b4935< 172ba7d46c202e679f3ccb10264c67416aaeb1c4 affected
b57dc7c13ea90e09ae15f821d2583fa0231b4935< 0b5b831122fc3789fff75be433ba3e4dd7b779d4 affected
b57dc7c13ea90e09ae15f821d2583fa0231b4935< 73f7da5fd124f2cda9161e2e46114915e6e82e97 affected
b57dc7c13ea90e09ae15f821d2583fa0231b4935< f5346df0591d10bc948761ca854b1fae6d2ef441 affected
b57dc7c13ea90e09ae15f821d2583fa0231b4935< 3f14b377d01d8357eba032b4cabc8c1149b458b6 affected
5.3 affected
< 5.3 unaffected
5.15.148≤ 5.15.* unaffected
… +4 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2023-52610

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
net/sched: act_ct: fix skb leak and crash on ooo frags
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_ct: fix skb leak and crash on ooo frags act_ct adds skb->users before defragmentation. If frags arrive in order, the last frag's reference is reset in: inet_frag_reasm_prepare skb_morph which is not straightforward. However when frags arrive out of order, nobody unref the last frag, and all frags are leaked. The situation is even worse, as initiating packet capture can lead to a crash[0] when skb has been cloned and shared at the same time. Fix the issue by removing skb_get() before defragmentation. act_ct returns TC_ACT_CONSUMED when defrag failed or in progress. [0]: [ 843.804823] ------------[ cut here ]------------ [ 843.809659] kernel BUG at net/core/skbuff.c:2091! [ 843.814516] invalid opcode: 0000 [#1] PREEMPT SMP [ 843.819296] CPU: 7 PID: 0 Comm: swapper/7 Kdump: loaded Tainted: G S 6.7.0-rc3 #2 [ 843.824107] Hardware name: XFUSION 1288H V6/BC13MBSBD, BIOS 1.29 11/25/2022 [ 843.828953] RIP: 0010:pskb_expand_head+0x2ac/0x300 [ 843.833805] Code: 8b 70 28 48 85 f6 74 82 48 83 c6 08 bf 01 00 00 00 e8 38 bd ff ff 8b 83 c0 00 00 00 48 03 83 c8 00 00 00 e9 62 ff ff ff 0f 0b <0f> 0b e8 8d d0 ff ff e9 b3 fd ff ff 81 7c 24 14 40 01 00 00 4c 89 [ 843.843698] RSP: 0018:ffffc9000cce07c0 EFLAGS: 00010202 [ 843.848524] RAX: 0000000000000002 RBX: ffff88811a211d00 RCX: 0000000000000820 [ 843.853299] RDX: 0000000000000640 RSI: 0000000000000000 RDI: ffff88811a211d00 [ 843.857974] RBP: ffff888127d39518 R08: 00000000bee97314 R09: 0000000000000000 [ 843.862584] R10: 0000000000000000 R11: ffff8881109f0000 R12: 0000000000000880 [ 843.867147] R13: ffff888127d39580 R14: 0000000000000640 R15: ffff888170f7b900 [ 843.871680] FS: 0000000000000000(0000) GS:ffff889ffffc0000(0000) knlGS:0000000000000000 [ 843.876242] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 843.880778] CR2: 00007fa42affcfb8 CR3: 000000011433a002 CR4: 0000000000770ef0 [ 843.885336] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 843.889809] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 843.894229] PKRU: 55555554 [ 843.898539] Call Trace: [ 843.902772] <IRQ> [ 843.906922] ? __die_body+0x1e/0x60 [ 843.911032] ? die+0x3c/0x60 [ 843.915037] ? do_trap+0xe2/0x110 [ 843.918911] ? pskb_expand_head+0x2ac/0x300 [ 843.922687] ? do_error_trap+0x65/0x80 [ 843.926342] ? pskb_expand_head+0x2ac/0x300 [ 843.929905] ? exc_invalid_op+0x50/0x60 [ 843.933398] ? pskb_expand_head+0x2ac/0x300 [ 843.936835] ? asm_exc_invalid_op+0x1a/0x20 [ 843.940226] ? pskb_expand_head+0x2ac/0x300 [ 843.943580] inet_frag_reasm_prepare+0xd1/0x240 [ 843.946904] ip_defrag+0x5d4/0x870 [ 843.950132] nf_ct_handle_fragments+0xec/0x130 [nf_conntrack] [ 843.953334] tcf_ct_act+0x252/0xd90 [act_ct] [ 843.956473] ? tcf_mirred_act+0x516/0x5a0 [act_mirred] [ 843.959657] tcf_action_exec+0xa1/0x160 [ 843.962823] fl_classify+0x1db/0x1f0 [cls_flower] [ 843.966010] ? skb_clone+0x53/0xc0 [ 843.969173] tcf_classify+0x24d/0x420 [ 843.972333] tc_run+0x8f/0xf0 [ 843.975465] __netif_receive_skb_core+0x67a/0x1080 [ 843.978634] ? dev_gro_receive+0x249/0x730 [ 843.981759] __netif_receive_skb_list_core+0x12d/0x260 [ 843.984869] netif_receive_skb_list_internal+0x1cb/0x2f0 [ 843.987957] ? mlx5e_handle_rx_cqe_mpwrq_rep+0xfa/0x1a0 [mlx5_core] [ 843.991170] napi_complete_done+0x72/0x1a0 [ 843.994305] mlx5e_napi_poll+0x28c/0x6d0 [mlx5_core] [ 843.997501] __napi_poll+0x25/0x1b0 [ 844.000627] net_rx_action+0x256/0x330 [ 844.003705] __do_softirq+0xb3/0x29b [ 844.006718] irq_exit_rcu+0x9e/0xc0 [ 844.009672] common_interrupt+0x86/0xa0 [ 844.012537] </IRQ> [ 844.015285] <TASK> [ 844.017937] asm_common_interrupt+0x26/0x40 [ 844.020591] RIP: 0010:acpi_safe_halt+0x1b/0x20 [ 844.023247] Code: ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 65 48 8b 04 25 00 18 03 00 48 8b 00 a8 08 75 0c 66 90 0f 00 2d 81 d0 44 00 fb ---truncated---
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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，该漏洞源于存在skb泄漏问题。
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 b57dc7c13ea90e09ae15f821d2583fa0231b4935 ~ 172ba7d46c202e679f3ccb10264c67416aaeb1c4 -
Linux Linux 5.3 -

II. Public POCs for CVE-2023-52610

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2023-52610

请登录查看更多情报信息。

Other References for CVE-2023-52610 (4)

Same Patch Batch · Linux · 2024-03-18 · 21 CVEs total

CVE-2024-26641 8.6 HIGH ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv()
CVE-2023-52612 7.8 HIGH crypto: scomp - fix req->dst buffer overflow
CVE-2024-26640 7.8 HIGH tcp: add sanity checks to rx zerocopy
CVE-2024-26631 7.8 HIGH ipv6: mcast: fix data-race in ipv6_mc_down / mld_ifc_work
CVE-2024-26632 7.8 HIGH block: Fix iterating over an empty bio with bio_for_each_folio_all
CVE-2023-52614 7.8 HIGH PM / devfreq: Fix buffer overflow in trans_stat_show
CVE-2023-52616 7.8 HIGH crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init
CVE-2024-26637 7.8 HIGH wifi: ath11k: rely on mac80211 debugfs handling for vif
CVE-2024-26634 net: fix removing a namespace with conflicting altnames
CVE-2023-52619 pstore/ram: Fix crash when setting number of cpus to an odd number
CVE-2023-52618 block/rnbd-srv: Check for unlikely string overflow
CVE-2023-52617 PCI: switchtec: Fix stdev_release() crash after surprise hot remove
CVE-2024-26638 nbd: always initialize struct msghdr completely
CVE-2024-26636 llc: make llc_ui_sendmsg() more robust against bonding changes
CVE-2024-26635 llc: Drop support for ETH_P_TR_802_2.
CVE-2023-52609 binder: fix race between mmput() and do_exit()
CVE-2023-52615 hwrng: core - Fix page fault dead lock on mmap-ed hwrng
CVE-2024-26633 ip6_tunnel: fix NEXTHDR_FRAGMENT handling in ip6_tnl_parse_tlv_enc_lim()
CVE-2023-52613 drivers/thermal/loongson2_thermal: Fix incorrect PTR_ERR() judgment
CVE-2023-52611 wifi: rtw88: sdio: Honor the host max_req_size in the RX path

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-52610

No comments yet

Leave a comment