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CVE-2026-53049— gfs2: add some missing log locking

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基金会开源的操作系统Linux所使用的内核。 Linux kernel 5.7版本存在安全漏洞，该漏洞源于日志刷新函数未正确持有锁，可能导致并发事务冲突。

CVSS 9.8 · Critical EPSS 0.39% · P31

Affected Version Matrix 16

VendorProduct Version RangeStatus
Linux Linux 5e4c7632aae1cce137792647f4fb6f599d1da893< 3b28eb75afe520972bacc833850c2b30aa0824cd affected
5e4c7632aae1cce137792647f4fb6f599d1da893< ca95342cb1b39062a03c115830286f0a426053d5 affected
5e4c7632aae1cce137792647f4fb6f599d1da893< bf5fcd9c37c2546beaf7b401d31aefd89017dc3d affected
5e4c7632aae1cce137792647f4fb6f599d1da893< f2f225cf505ac016132ded21690f3ba0a080a4e8 affected
5e4c7632aae1cce137792647f4fb6f599d1da893< 49d9be0722da3a4a893ba905720cba1921834ec3 affected
5e4c7632aae1cce137792647f4fb6f599d1da893< 98e8bf249c790d56de1abc4a5f8bd68035a00921 affected
5e4c7632aae1cce137792647f4fb6f599d1da893< fe2c8d051150b90b3ccb85f89e3b1d636cb88ec8 affected
5.7 affected
… +8 more rows
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I. Basic Information for CVE-2026-53049

Vulnerability Information
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Vulnerability Title
gfs2: add some missing log locking
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: gfs2: add some missing log locking Function gfs2_logd() calls the log flushing functions gfs2_ail1_start(), gfs2_ail1_wait(), and gfs2_ail1_empty() without holding sdp->sd_log_flush_lock, but these functions require exclusion against concurrent transactions. To fix that, add a non-locking __gfs2_log_flush() function. Then, in gfs2_logd(), take sdp->sd_log_flush_lock before calling the above mentioned log flushing functions and __gfs2_log_flush().
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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基金会开源的操作系统Linux所使用的内核。 Linux kernel 5.7版本存在安全漏洞，该漏洞源于日志刷新函数未正确持有锁，可能导致并发事务冲突。
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 5e4c7632aae1cce137792647f4fb6f599d1da893 ~ 3b28eb75afe520972bacc833850c2b30aa0824cd -
Linux Linux 5.7 -

II. Public POCs for CVE-2026-53049

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III. Intelligence Information for CVE-2026-53049

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Patches & Fixes for CVE-2026-53049 (7)

Same Patch Batch · Linux · 2026-06-24 · 219 CVEs total

CVE-2026-53045 9.8 CRITICAL memory: tegra124-emc: Fix dll_change check
CVE-2026-53010 9.8 CRITICAL ksmbd: fix use-after-free in smb2_open during durable reconnect
CVE-2026-53088 9.8 CRITICAL net: bcmgenet: fix off-by-one in bcmgenet_put_txcb
CVE-2026-53006 9.8 CRITICAL ipv6: fix possible UAF in icmpv6_rcv()
CVE-2026-53002 9.8 CRITICAL netfilter: conntrack: remove sprintf usage
CVE-2026-53086 9.8 CRITICAL net: bcmgenet: fix racing timeout handler
CVE-2026-52993 9.8 CRITICAL tipc: fix double-free in tipc_buf_append()
CVE-2026-52989 9.8 CRITICAL nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers
CVE-2026-52986 9.8 CRITICAL netfilter: nf_conntrack_sip: don't use simple_strtoul
CVE-2026-52982 9.8 CRITICAL net: usb: rtl8150: fix use-after-free in rtl8150_start_xmit()
CVE-2026-52955 9.8 CRITICAL libceph: Fix potential out-of-bounds access in crush_decode()
CVE-2026-53046 9.8 CRITICAL ksmbd: fix use-after-free from async crypto on Qualcomm crypto engine
CVE-2026-52924 9.8 CRITICAL sctp: purge outqueue on stale COOKIE-ECHO handling
CVE-2026-52931 9.8 CRITICAL batman-adv: tp_meter: avoid use of uninit sender vars
CVE-2026-53055 9.8 CRITICAL crypto: hisilicon/sec2 - prevent req used-after-free for sec
CVE-2026-52914 9.8 CRITICAL batman-adv: fix fragment reassembly length accounting
CVE-2026-53043 9.1 CRITICAL ocfs2/dlm: validate qr_numregions in dlm_match_regions()
CVE-2026-52999 9.1 CRITICAL netfilter: nfnetlink_osf: fix out-of-bounds read on option matching
CVE-2026-52958 9.1 CRITICAL libceph: Fix potential out-of-bounds access in osdmap_decode()
CVE-2026-52918 8.8 HIGH Bluetooth: serialize accept_q access

Showing top 20 of 219 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-53049

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