cbcvebase.
CVE-2024-40947
published 2024-07-12

CVE-2024-40947: In the Linux kernel, the following vulnerability has been resolved: ima: Avoid blocking in RCU read-side critical section A panic happens in ima_match_policy…

PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.25%
16.7th percentile
In the Linux kernel, the following vulnerability has been resolved: ima: Avoid blocking in RCU read-side critical section A panic happens in ima_match_policy: BUG: unable to handle kernel NULL pointer dereference at 0000000000000010 PGD 42f873067 P4D 0 Oops: 0000 [#1] SMP NOPTI CPU: 5 PID: 1286325 Comm: kubeletmonit.sh Kdump: loaded Tainted: P Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.0.0 02/06/2015 RIP: 0010:ima_match_policy+0x84/0x450 Code: 49 89 fc 41 89 cf 31 ed 89 44 24 14 eb 1c 44 39 7b 18 74 26 41 83 ff 05 74 20 48 8b 1b 48 3b 1d f2 b9 f4 00 0f 84 9c 01 00 00 85 73 10 74 ea 44 8b 6b 14 41 f6 c5 01 75 d4 41 f6 c5 02 74 0f RSP: 0018:ff71570009e07a80 EFLAGS: 00010207 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000200 RDX: ffffffffad8dc7c0 RSI: 0000000024924925 RDI: ff3e27850dea2000 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffffabfce739 R10: ff3e27810cc42400 R11: 0000000000000000 R12: ff3e2781825ef970 R13: 00000000ff3e2785 R14: 000000000000000c R15: 0000000000000001 FS: 00007f5195b51740(0000) GS:ff3e278b12d40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000010 CR3: 0000000626d24002 CR4: 0000000000361ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ima_get_action+0x22/0x30 process_measurement+0xb0/0x830 ? page_add_file_rmap+0x15/0x170 ? alloc_set_pte+0x269/0x4c0 ? prep_new_page+0x81/0x140 ? simple_xattr_get+0x75/0xa0 ? selinux_file_open+0x9d/0xf0 ima_file_check+0x64/0x90 path_openat+0x571/0x1720 do_filp_open+0x9b/0x110 ? page_counter_try_charge+0x57/0xc0 ? files_cgroup_alloc_fd+0x38/0x60 ? __alloc_fd+0xd4/0x250 ? do_sys_open+0x1bd/0x250 do_sys_open+0x1bd/0x250 do_syscall_64+0x5d/0x1d0 entry_SYSCALL_64_after_hwframe+0x65/0xca Commit c7423dbdbc9e ("ima: Handle -ESTALE returned by ima_filter_rule_match()") introduced call to ima_lsm_copy_rule within a RCU read-side criti

Affected

32 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.99-1 (bookworm)linux 6.1.99-1 (bookworm)
debianlinux-6.1< linux 6.1.99-1 (bookworm)linux 6.1.99-1 (bookworm)
linuxlinux
linuxlinux
linuxlinux
linuxlinux>= 2d4bc60693c4206c64723e94ae5f7a04c0b8f18f < a38e02265c681b51997a264aaf743095e2ee400aa38e02265c681b51997a264aaf743095e2ee400a
linuxlinux>= 5.10.163 < 5.10.2225.10.222
linuxlinux>= 5.15.86 < 5.15.1635.15.163
linuxlinux>= 5.4.229 < 5.55.5
linuxlinux>= 6.0.16 < 6.16.1
linuxlinux>= 6.1.2 < 6.1.986.1.98
linuxlinux>= 8008f1691c15f353f5a53dc5d450b8262cb57421 < 9c3906c3738562b1fedc6f1cfc81756a7cfefff09c3906c3738562b1fedc6f1cfc81756a7cfefff0
linuxlinux>= c4b035b1f036ddd53fbfced49046e586c5ad8a3e < a6176a802c4bfb83bf7524591aa75f44a639a853a6176a802c4bfb83bf7524591aa75f44a639a853
linuxlinux>= c7423dbdbc9ecef7fff5239d144cad4b9887f4de < 28d0ecc52f6c927d0e9ba70a4f2c1ea15453ee8828d0ecc52f6c927d0e9ba70a4f2c1ea15453ee88
linuxlinux>= c7423dbdbc9ecef7fff5239d144cad4b9887f4de < 58275455893066149e9f4df2223ab2fdbdc59f9c58275455893066149e9f4df2223ab2fdbdc59f9c
linuxlinux>= c7423dbdbc9ecef7fff5239d144cad4b9887f4de < 9a95c5bfbf02a0a7f5983280fe284a0ff0836c349a95c5bfbf02a0a7f5983280fe284a0ff0836c34
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.223-15.10.223-1
linuxlinux_kernel>= 0 < 6.1.99-16.1.99-1
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 6.9.7-16.9.7-1
linuxlinux_kernel>= 0 < 6.8.0-44.446.8.0-44.44

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5MEDIUM
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
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