CVE-2023-53509

By default, qedmcpcmdandunion() delays 10us at a time in a loop that can run 500K times, so calls to qedmcpnvmrdcmd() may block the current thread for over 5s. We observed thread scheduling delays over 700ms in production, with stacktraces pointing to this code as the culprit.

qedmcptracedump() is called from ethtool, so sleeping is permitted. It already can sleep in qedmcphalt(), which calls qedmcpcmd(). Add a "can sleep" parameter to qedfindnvramimage() and qednvramread() so they can sleep during qedmcptracedump(). qedmcptracegetmetainfo() and qedmcptracereadmeta(), called only by qedmcptracedump(), allow these functions to sleep. I can't tell if the other caller (qedgrcdumpmcphwdump()) can sleep, so keep bcansleep set to false when it calls these functions.

An example stacktrace from a custom warning we added to the kernel showing a thread that has not scheduled despite long needing resched: [ 2745.362925,17] ------------[ cut here ]------------ [ 2745.362941,17] WARNING: CPU: 23 PID: 5640 at arch/x86/kernel/irq.c:233 doIRQ+0x15e/0x1a0() [ 2745.362946,17] Thread not rescheduled for 744 ms after irq 99 [ 2745.362956,17] Modules linked in: ... [ 2745.363339,17] CPU: 23 PID: 5640 Comm: lldpd Tainted: P O 4.4.182+ #202104120910+6d1da174272d.61x [ 2745.363343,17] Hardware name: FOXCONN MercuryB/Quicksilver Controller, BIOS H11P1N09 07/08/2020 [ 2745.363346,17] 0000000000000000 ffff885ec07c3ed8 ffffffff8131eb2f ffff885ec07c3f20 [ 2745.363358,17] ffffffff81d14f64 ffff885ec07c3f10 ffffffff81072ac2 ffff88be98ed0000 [ 2745.363369,17] 0000000000000063 0000000000000174 0000000000000074 0000000000000000 [ 2745.363379,17] Call Trace: [ 2745.363382,17] <IRQ> [<ffffffff8131eb2f>] dumpstack+0x8e/0xcf [ 2745.363393,17] [<ffffffff81072ac2>] warnslowpathcommon+0x82/0xc0 [ 2745.363398,17] [<ffffffff81072b4c>] warnslowpathfmt+0x4c/0x50 [ 2745.363404,17] [<ffffffff810d5a8e>] ? rcuirqexit+0xae/0xc0 [ 2745.363408,17] [<ffffffff817c99fe>] doIRQ+0x15e/0x1a0 [ 2745.363413,17] [<ffffffff817c7ac9>] commoninterrupt+0x89/0x89 [ 2745.363416,17] <EOI> [<ffffffff8132aa74>] ? delaytsc+0x24/0x50 [ 2745.363425,17] [<ffffffff8132aa04>] _udelay+0x34/0x40 [ 2745.363457,17] [<ffffffffa04d45ff>] qedmcpcmdandunion+0x36f/0x7d0 [qed] [ 2745.363473,17] [<ffffffffa04d5ced>] qedmcpnvmrdcmd+0x4d/0x90 [qed] [ 2745.363490,17] [<ffffffffa04e1dc7>] qedmcptracedump+0x4a7/0x630 [qed] [ 2745.363504,17] [<ffffffffa04e2556>] ? qedfwassertsdump+0x1d6/0x1f0 [qed] [ 2745.363520,17] [<ffffffffa04e4ea7>] qeddbgmcptracegetdumpbufsize+0x37/0x80 [qed] [ 2745.363536,17] [<ffffffffa04ea881>] qeddbgfeaturesize+0x61/0xa0 [qed] [ 2745.363551,17] [<ffffffffa04eb427>] qeddbgalldatasize+0x247/0x260 [qed] [ 2745.363560,17] [<ffffffffa0482c10>] qedegetregslen+0x30/0x40 [qede] [ 2745.363566,17] [<ffffffff816c9783>] ethtoolgetdrvinfo+0xe3/0x190 [ 2745.363570,17] [<ffffffff816cc152>] devethtool+0x1362/0x2140 [ 2745.363575,17] [<ffffffff8109bcc6>] ? finishtaskswitch+0x76/0x260 [ 2745.363580,17] [<ffffffff817c2116>] ? _schedule+0x3c6/0x9d0 [ 2745.363585,17] [<ffffffff810dbd50>] ? hrtimerstartrangens+0x1d0/0x370 [ 2745.363589,17] [<ffffffff816c1e5b>] ? devgetbynamercu+0x6b/0x90 [ 2745.363594,17] [<ffffffff816de6a8>] devioctl+0xe8/0x710 [ 2745.363599,17] [<ffffffff816a58a8>] sockdoioctl+0x48/0x60 [ 2745.363603,17] [<ffffffff816a5d87>] sockioctl+0x1c7/0x280 [ 2745.363608,17] [<ffffffff8111f393>] ? seccompphase1+0x83/0x220 [ 2745.363612,17] [<ffffffff811e3503>] dovfsioctl+0x2b3/0x4e0 [ 2745.363616,17] [<ffffffff811e3771>] SySioctl+0x41/0x70 [ 2745.363619,17] [<ffffffff817c6ffe>] entrySYSCALL64_fastpath+0x1e/0x79 [ 2745.363622,17] ---[ end trace f6954aa440266421 ]---

Database specific

{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53509.json"
}

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

c965db44462919f613973aa618271f6c3f5a1e64

Fixed

e0387f4f39a8d92302273ac356d1f6b2a38160d8

Fixed

50c81b35df01db12b348c5cbf4b1917dc9a7db54

Fixed

5401c3e0992860b11fb4b25796e4c4f1921740df

Affected versions

v4.*

v4.10

v4.10-rc1

v4.10-rc2

v4.10-rc3

v4.10-rc4

v4.10-rc5

v4.10-rc6

v4.10-rc7

v4.10-rc8

v4.11

v4.11-rc1

v4.11-rc2

v4.11-rc3

v4.11-rc4

v4.11-rc5

v4.11-rc6

v4.11-rc7

v4.11-rc8

v4.12

v4.12-rc1

v4.12-rc2

v4.12-rc3

v4.12-rc4

v4.12-rc5

v4.12-rc6

v4.12-rc7

v4.13

v4.13-rc1

v4.13-rc2

v4.13-rc3

v4.13-rc4

v4.13-rc5

v4.13-rc6

v4.13-rc7

v4.14

v4.14-rc1

v4.14-rc2

v4.14-rc3

v4.14-rc4

v4.14-rc5

v4.14-rc6

v4.14-rc7

v4.14-rc8

v4.15

v4.15-rc1

v4.15-rc2

v4.15-rc3

v4.15-rc4

v4.15-rc5

v4.15-rc6

v4.15-rc7

v4.15-rc8

v4.15-rc9

v4.16

v4.16-rc1

v4.16-rc2

v4.16-rc3

v4.16-rc4

v4.16-rc5

v4.16-rc6

v4.16-rc7

v4.17

v4.17-rc1

v4.17-rc2

v4.17-rc3

v4.17-rc4

v4.17-rc5

v4.17-rc6

v4.17-rc7

v4.18

v4.18-rc1

v4.18-rc2

v4.18-rc3

v4.18-rc4

v4.18-rc5

v4.18-rc6

v4.18-rc7

v4.18-rc8

v4.19

v4.19-rc1

v4.19-rc2

v4.19-rc3

v4.19-rc4

v4.19-rc5

v4.19-rc6

v4.19-rc7

v4.19-rc8

v4.20

v4.20-rc1

v4.20-rc2

v4.20-rc3

v4.20-rc4

v4.20-rc5

v4.20-rc6

v4.20-rc7

v4.8

v4.8-rc5

v4.8-rc6

v4.8-rc7

v4.8-rc8

v4.9

v4.9-rc1

v4.9-rc2

v4.9-rc3

v4.9-rc4

v4.9-rc5

v4.9-rc6

v4.9-rc7

v4.9-rc8

v5.*

v5.0

v5.0-rc1

v5.0-rc2

v5.0-rc3

v5.0-rc4

v5.0-rc5

v5.0-rc6

v5.0-rc7

v5.0-rc8

v5.1

v5.1-rc1

v5.1-rc2

v5.1-rc3

v5.1-rc4

v5.1-rc5

v5.1-rc6

v5.1-rc7

v5.10

v5.10-rc1

v5.10-rc2

v5.10-rc3

v5.10-rc4

v5.10-rc5

v5.10-rc6

v5.10-rc7

v5.11

v5.11-rc1

v5.11-rc2

v5.11-rc3

v5.11-rc4

v5.11-rc5

v5.11-rc6

v5.11-rc7

v5.12

v5.12-rc1

v5.12-rc1-dontuse

v5.12-rc2

v5.12-rc3

v5.12-rc4

v5.12-rc5

v5.12-rc6

v5.12-rc7

v5.12-rc8

v5.13

v5.13-rc1

v5.13-rc2

v5.13-rc3

v5.13-rc4

v5.13-rc5

v5.13-rc6

v5.13-rc7

v5.14

v5.14-rc1

v5.14-rc2

v5.14-rc3

v5.14-rc4

v5.14-rc5

v5.14-rc6

v5.14-rc7

v5.15

v5.15-rc1

v5.15-rc2

v5.15-rc3

v5.15-rc4

v5.15-rc5

v5.15-rc6

v5.15-rc7

v5.16

v5.16-rc1

v5.16-rc2

v5.16-rc3

v5.16-rc4

v5.16-rc5

v5.16-rc6

v5.16-rc7

v5.16-rc8

v5.17

v5.17-rc1

v5.17-rc2

v5.17-rc3

v5.17-rc4

v5.17-rc5

v5.17-rc6

v5.17-rc7

v5.17-rc8

v5.18

v5.18-rc1

v5.18-rc2

v5.18-rc3

v5.18-rc4

v5.18-rc5

v5.18-rc6

v5.18-rc7

v5.19

v5.19-rc1

v5.19-rc2

v5.19-rc3

v5.19-rc4

v5.19-rc5

v5.19-rc6

v5.19-rc7

v5.19-rc8

v5.2

v5.2-rc1

v5.2-rc2

v5.2-rc3

v5.2-rc4

v5.2-rc5

v5.2-rc6

v5.2-rc7

v5.3

v5.3-rc1

v5.3-rc2

v5.3-rc3

v5.3-rc4

v5.3-rc5

v5.3-rc6

v5.3-rc7

v5.3-rc8

v5.4

v5.4-rc1

v5.4-rc2

v5.4-rc3

v5.4-rc4

v5.4-rc5

v5.4-rc6

v5.4-rc7

v5.4-rc8

v5.5

v5.5-rc1

v5.5-rc2

v5.5-rc3

v5.5-rc4

v5.5-rc5

v5.5-rc6

v5.5-rc7

v5.6

v5.6-rc1

v5.6-rc2

v5.6-rc3

v5.6-rc4

v5.6-rc5

v5.6-rc6

v5.6-rc7

v5.7

v5.7-rc1

v5.7-rc2

v5.7-rc3

v5.7-rc4

v5.7-rc5

v5.7-rc6

v5.7-rc7

v5.8

v5.8-rc1

v5.8-rc2

v5.8-rc3

v5.8-rc4

v5.8-rc5

v5.8-rc6

v5.8-rc7

v5.9

v5.9-rc1

v5.9-rc2

v5.9-rc3

v5.9-rc4

v5.9-rc5

v5.9-rc6

v5.9-rc7

v5.9-rc8

v6.*

v6.0

v6.0-rc1

v6.0-rc2

v6.0-rc3

v6.0-rc4

v6.0-rc5

v6.0-rc6

v6.0-rc7

v6.0.1

v6.0.10

v6.0.11

v6.0.12

v6.0.13

v6.0.14

v6.0.15

v6.0.16

v6.0.17

v6.0.18

v6.0.2

v6.0.3

v6.0.4

v6.0.5

v6.0.6

v6.0.7

v6.0.8

v6.0.9

v6.1

v6.1-rc1

v6.1-rc2

v6.1-rc3

v6.1-rc4

v6.1-rc5

v6.1-rc6

v6.1-rc7

v6.1-rc8

v6.1.1

v6.1.2

v6.1.3

v6.1.4

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53509.json"

vanir_signatures

[
    {
        "id": "CVE-2023-53509-1419912e",
        "digest": {
            "length": 644.0,
            "function_hash": "183425207002084702472087645747846906178"
        },
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/ethernet/qlogic/qed/qed_debug.c",
            "function": "qed_mcp_trace_read_meta"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e0387f4f39a8d92302273ac356d1f6b2a38160d8",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53509-34de3561",
        "digest": {
            "length": 691.0,
            "function_hash": "321783799099708798534711646548933886164"
        },
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/ethernet/qlogic/qed/qed_debug.c",
            "function": "qed_find_nvram_image"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5401c3e0992860b11fb4b25796e4c4f1921740df",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53509-3f17c139",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
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                "84549958174992511887978090569774229899"
            ]
        },
        "signature_type": "Line",
        "target": {
            "file": "drivers/net/ethernet/qlogic/qed/qed_debug.c"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5401c3e0992860b11fb4b25796e4c4f1921740df",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53509-4d7968f6",
        "digest": {
            "length": 691.0,
            "function_hash": "321783799099708798534711646548933886164"
        },
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/ethernet/qlogic/qed/qed_debug.c",
            "function": "qed_find_nvram_image"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@50c81b35df01db12b348c5cbf4b1917dc9a7db54",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53509-51ff6a4e",
        "digest": {
            "length": 809.0,
            "function_hash": "265384480474958161668425878344345138160"
        },
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/ethernet/qlogic/qed/qed_debug.c",
            "function": "qed_nvram_read"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e0387f4f39a8d92302273ac356d1f6b2a38160d8",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53509-5eaf07de",
        "digest": {
            "length": 519.0,
            "function_hash": "329730569544343714877002613921048304241"
        },
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/ethernet/qlogic/qed/qed_debug.c",
            "function": "qed_mcp_trace_get_meta_info"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e0387f4f39a8d92302273ac356d1f6b2a38160d8",
        "deprecated": false
    },
    {
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        "digest": {
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            "function_hash": "329730569544343714877002613921048304241"
        },
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/ethernet/qlogic/qed/qed_debug.c",
            "function": "qed_mcp_trace_get_meta_info"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5401c3e0992860b11fb4b25796e4c4f1921740df",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53509-657b500d",
        "digest": {
            "length": 644.0,
            "function_hash": "183425207002084702472087645747846906178"
        },
        "signature_type": "Function",
        "target": {
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            "function": "qed_mcp_trace_read_meta"
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        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5401c3e0992860b11fb4b25796e4c4f1921740df",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53509-8486a04e",
        "digest": {
            "length": 644.0,
            "function_hash": "183425207002084702472087645747846906178"
        },
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/ethernet/qlogic/qed/qed_debug.c",
            "function": "qed_mcp_trace_read_meta"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@50c81b35df01db12b348c5cbf4b1917dc9a7db54",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53509-866c9f18",
        "digest": {
            "length": 809.0,
            "function_hash": "265384480474958161668425878344345138160"
        },
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/ethernet/qlogic/qed/qed_debug.c",
            "function": "qed_nvram_read"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5401c3e0992860b11fb4b25796e4c4f1921740df",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53509-8f75a570",
        "digest": {
            "length": 635.0,
            "function_hash": "20473523179280031016268623211793938188"
        },
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/ethernet/qlogic/qed/qed_debug.c",
            "function": "qed_grc_dump_mcp_hw_dump"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e0387f4f39a8d92302273ac356d1f6b2a38160d8",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53509-9a42146e",
        "digest": {
            "length": 691.0,
            "function_hash": "321783799099708798534711646548933886164"
        },
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/ethernet/qlogic/qed/qed_debug.c",
            "function": "qed_find_nvram_image"
        },
        "signature_version": "v1",
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e0387f4f39a8d92302273ac356d1f6b2a38160d8",
        "deprecated": false
    },
    {
        "id": "CVE-2023-53509-afaa4ded",
        "digest": {
            "length": 635.0,
            "function_hash": "20473523179280031016268623211793938188"
        },
        "signature_type": "Function",
        "target": {
            "file": "drivers/net/ethernet/qlogic/qed/qed_debug.c",
            "function": "qed_grc_dump_mcp_hw_dump"
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Git / github.com/gregkh/linux