CVE-2026-23043— btrfs: fix NULL pointer dereference in do_abort_log_replay()
Possible ATT&CK Techniques 1AI
T1496 · Resource HijackingAffected Version Matrix 6
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I. Basic Information for CVE-2026-23043
Vulnerability Information
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Vulnerability Title
btrfs: fix NULL pointer dereference in do_abort_log_replay()
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix NULL pointer dereference in do_abort_log_replay() Coverity reported a NULL pointer dereference issue (CID 1666756) in do_abort_log_replay(). When btrfs_alloc_path() fails in replay_one_buffer(), wc->subvol_path is NULL, but btrfs_abort_log_replay() calls do_abort_log_replay() which unconditionally dereferences wc->subvol_path when attempting to print debug information. Fix this by adding a NULL check before dereferencing wc->subvol_path in do_abort_log_replay().
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do_abort_log_replay无条件解引用空路径指针，可能导致空指针取消引用。
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
II. Public POCs for CVE-2026-23043
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Same Patch Batch · Linux · 2026-02-04 · 79 CVEs total
| CVE-2026-23098 | 8.8 HIGH | netrom: fix double-free in nr_route_frame() |
| CVE-2026-23066 | 7.8 HIGH | rxrpc: Fix recvmsg() unconditional requeue |
| CVE-2026-23074 | 7.8 HIGH | net/sched: Enforce that teql can only be used as root qdisc |
| CVE-2026-23077 | 7.8 HIGH | mm/vma: fix anon_vma UAF on mremap() faulted, unfaulted merge |
| CVE-2026-23105 | 7.8 HIGH | net/sched: qfq: Use cl_is_active to determine whether class is active in qfq_rm_from_ag |
| CVE-2026-23103 | 7.8 HIGH | ipvlan: Make the addrs_lock be per port |
| CVE-2026-23095 | 7.5 HIGH | gue: Fix skb memleak with inner IP protocol 0. |
| CVE-2025-71192 | 7.0 HIGH | ALSA: ac97: fix a double free in snd_ac97_controller_register() |
| CVE-2026-23064 | net/sched: act_ife: avoid possible NULL deref | |
| CVE-2026-23065 | platform/x86/amd: Fix memory leak in wbrf_record() | |
| CVE-2026-23067 | iommu/io-pgtable-arm: fix size_t signedness bug in unmap path | |
| CVE-2026-23042 | idpf: fix aux device unplugging when rdma is not supported by vport | |
| CVE-2026-23060 | crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec | |
| CVE-2026-23059 | scsi: qla2xxx: Sanitize payload size to prevent member overflow | |
| CVE-2026-23058 | can: ems_usb: ems_usb_read_bulk_callback(): fix URB memory leak | |
| CVE-2026-23057 | vsock/virtio: Coalesce only linear skb | |
| CVE-2026-23056 | uacce: implement mremap in uacce_vm_ops to return -EPERM | |
| CVE-2025-71199 | iio: adc: at91-sama5d2_adc: Fix potential use-after-free in sama5d2_adc driver | |
| CVE-2025-71198 | iio: imu: st_lsm6dsx: fix iio_chan_spec for sensors without event detection | |
| CVE-2026-23061 | can: kvaser_usb: kvaser_usb_read_bulk_callback(): fix URB memory leak |
Showing top 20 of 79 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
Same vendor: Linux
- CVE-2026-74579
netfilter: nft_payload: fix mask build for partial field off - CVE-2026-74578
crypto: algif_skcipher - force synchronous processing on tre - CVE-2026-74577
net: mpls: initialize rtm_tos in mpls_getroute() - CVE-2026-74576
mm/slab: prevent unbounded recursion in free path with new k - CVE-2026-74574
dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev
V. Comments for CVE-2026-23043
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