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CVE-2026-53163— rtmutex 跳过未入队等待者移除操作

AI Predicted 7.8 Difficulty: Moderate EPSS 0.17% · P7
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I. CVE-2026-53163の基本情報

脆弱性情報
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脆弱性タイトル
locking/rtmutex: Skip remove_waiter() when waiter is not enqueued
ソース: NVD (National Vulnerability Database)
脆弱性説明
In the Linux kernel, the following vulnerability has been resolved: locking/rtmutex: Skip remove_waiter() when waiter is not enqueued syzbot triggered the following splat in remove_waiter() via FUTEX_CMP_REQUEUE_PI: KASAN: null-ptr-deref in range [0x0000000000000a88-0x0000000000000a8f] class_raw_spinlock_constructor remove_waiter+0x159/0x1200 kernel/locking/rtmutex.c:1561 rt_mutex_start_proxy_lock+0x103/0x120 futex_requeue+0x10e4/0x20d0 __x64_sys_futex+0x34f/0x4d0 task_blocks_on_rt_mutex() does not arm the waiter upon deadlock detection, leaving waiter->task nil, where 3bfdc63936dd ("rtmutex: Use waiter::task instead of current in remove_waiter()") made this fatal. Furthermore, rt_mutex_start_proxy_lock() should not be calling into remove_waiter() upon a successfully grabbing the rtmutex. 1a1fb985f2e2 ("futex: Handle early deadlock return correctly"), moved the remove_waiter() out of __rt_mutex_start_proxy_lock() (where 'ret' was only ever 0 or < 0) into the wrapper. Tighten this check to account for try_to_take_rt_mutex().
ソース: NVD (National Vulnerability Database)
CVSS情報
N/A
ソース: NVD (National Vulnerability Database)
脆弱性タイプ
N/A
ソース: NVD (National Vulnerability Database)

影響を受ける製品

ベンダープロダクト影響を受けるバージョンCPE購読
LinuxLinux 3fb7394a837740770f0d6b4b30567e60786a63f2 ~ a388e3dfaf9538a680de5ed43a8ebb5dd45b6e53 -
LinuxLinux 6.18.27 ~ 6.18.36 -

II. CVE-2026-53163の公開POC

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III. CVE-2026-53163のインテリジェンス情報

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CVE-2026-53163 补丁与修复 (3)

Same Patch Batch · Linux · 2026-06-25 · 147 CVEs total

CVE-2026-531759.8 CRITICALinet: frags: fix use-after-free caused by the fqdir_pre_exit() flush
CVE-2026-531769.8 CRITICALIB/isert: Reject login PDUs shorter than ISER_HEADERS_LEN
CVE-2026-532219.8 CRITICALip6_vti: fix incorrect tunnel matching in vti6_tnl_lookup()
CVE-2026-532289.8 CRITICALipv6: sit: reload inner IPv6 header after GSO offloads
CVE-2026-532169.8 CRITICALnet: mvpp2: limit XDP frame size to the RX buffer
CVE-2026-531519.8 CRITICALrxrpc: Fix the ACK parser to extract the SACK table for parsing
CVE-2026-532609.8 CRITICALtcp: Add preempt_{disable,enable}_nested() in reqsk_queue_hash_req().
CVE-2026-532159.8 CRITICALnet: mvpp2: refill RX buffers before XDP or skb use
CVE-2026-532479.8 CRITICALnet: ethernet: mtk_eth_soc: Fix use-after-free in metadata dst teardown
CVE-2026-532469.8 CRITICALsctp: validate cached peer INIT chunk length in COOKIE_ECHO processing
CVE-2026-531319.4 CRITICALnetfilter: require Ethernet MAC header before using eth_hdr()
CVE-2026-532259.1 CRITICALsctp: fix uninit-value in __sctp_rcv_asconf_lookup()
CVE-2026-531869.1 CRITICALRDMA/srp: bound SRP_RSP sense copy by the received length
CVE-2026-532249.1 CRITICALsctp: validate embedded INIT chunk and address list lengths in cookie
CVE-2026-532008.8 HIGHKVM: arm64: nv: Fix handling of XN[0] when !FEAT_XNX
CVE-2026-532778.8 HIGHKVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation
CVE-2026-532328.8 HIGHnet: phy: clean the sfp upstream if phy probing fails
CVE-2026-532488.8 HIGHnet: airoha: Fix use-after-free in metadata dst teardown
CVE-2026-531988.8 HIGHksmbd: fix use-after-free of a deferred file_lock on double SMB2_CANCEL
CVE-2026-532408.8 HIGHxfrm: iptfs: fix use-after-free on first_skb in __input_process_payload

Showing 20 of 147 CVEs. View all on vendor page →

IV. 関連脆弱性

同じ製品: Linux
同じベンダー: Linux

V. CVE-2026-53163へのコメント

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